Wearable device

A wearable device for attachment to the ear of a user can comprise an earpiece including a speaker and a body section including a hook for attachment about the ear of a user. The length of the earpiece can be adjusted. The earpiece can rotate relative to the body section. The point of rotation can be located within a region defined by the perimeter of the concha of the ear of a user. The wearable device can comprise magnetic elements configured to magnetically couple through the user's ear to retain the wearable device in place. A magnetometer which is configured and arranged to detect a degree of magnetic coupling between the magnetic elements is disclosed.

FIELD

This invention relates to a wearable device, particularly to a wearable device which is worn about a user's ear for playing audible media such as music.

BACKGROUND

Audio media playing devices that are worn about the ear of a user are known. These wearable devices typically include a speaker that is overlaid on or sits within the user's ear to play audio. Whilst most ears share common features, the size and shape of ears can vary across users, and these variations can affect the fit and comfort of the wearable device. Many wearable devices cannot be adjusted to accommodate for different ears of different shapes and sizes.

Some wearable devices can attach to an ear by coupling through the ear using complimentary magnetic elements. Although these may be comfortable and secure when used with most ears, natural variations in the size and/or shape of ears make it possible for the magnetic elements to couple too tightly or too loosely to a given user's ear. Furthermore, it is possible for a user to incorrectly couple the magnetic elements at an incorrect location or proximity so that the wearable device is too tight or too loose.

SUMMARY

According to one example there is provided a wearable device for attachment to an ear of a user, the wearable device comprising: an earpiece including a speaker; and a body section including a hook for attachment about the ear of a user; wherein the earpiece is configured so that a length of the earpiece can be adjusted; and wherein the earpiece and body section are configured so that the earpiece can rotate relative to the body section.

According to another example there is provided a wearable device for attachment to an ear of a user, the wearable device comprising: an earpiece including a speaker; and a body section including a hook for attachment about the ear of a user; wherein the earpiece and body section are configured so that when the body section is attached to the ear of a user the earpiece can rotate relative to the body section about a point of rotation located within a region defined by the perimeter of the concha of the ear of a user.

The earpiece can further include a first magnetic element, the body section can further include a second magnetic element, and the earpiece and body section can be configured so that when the body section is hooked about the ear, the first magnetic element and second magnetic element are adapted to magnetically couple through the ear to retain the wearable device in place.

The second magnetic element can be positioned so as to be proximate the concha of the ear when the body section is attached to the ear of the user.

The first magnetic element can be located at a distal end of the earpiece.

The first magnetic element can comprise a plurality of magnetic sub-elements spaced at intervals such that the first magnetic element and second magnetic element can be magnetically coupled through the ear at a plurality of positions.

The earpiece can be configured so that when the body section is attached to the ear of the user, the earpiece can rotate relative to the body section about a point of rotation located within a region defined by the perimeter of the concha of the ear.

The earpiece can comprise a first portion defining a plurality of apertures; and a second portion including a plurality of protrusions: wherein the first portion and second portion are configured such that the apertures and protrusions can releasably couple so that a length of the earpiece can be adjusted.

The earpiece can comprise a first portion; and a second portion; wherein the first portion and second portion are configured such that the first portion can telescopically extend or retract with respect to the second portion so that a length of the earpiece can be adjusted.

The earpiece can comprise a first portion including a male thread; and a second portion including a complementary female thread configured to engage with the male thread; wherein the first portion and second portion are configured such that the engagement between the male thread and complimentary female thread can be adjusted so that a length of the earpiece can be adjusted.

The earpiece can comprise a first portion; a second portion; and a resilient member configured to bias the first portion and second portion; wherein the resilient member can allow relative longitudinal movement between the first portion and second portion so that a length of the earpiece can be adjusted.

The earpiece can comprise a first portion; a second portion; and a bellows connecting the first portion and second portion; wherein the bellows is extendible and retractable so that a length of the earpiece can be adjusted.

The wearable device can include a connector and the earpiece can be configured to rotate relative to the body section about a rotatable connection to the connector.

The earpiece can include a magnetic element configured to allow rotation of the earpiece relative to the body section.

The magnetic element can be the first magnetic element.

The magnetic element can comprise an axially magnetised magnet.

The magnetic element can be rotationally symmetric.

The earpiece can be configured to be continuously rotatable in relation to the body section.

The earpiece can be configured to rotate between a plurality of discrete angular positions relative to the body section.

The magnetic element can comprise a plurality of magnetic sub-elements substantially arranged in a ring.

The magnetic sub-elements can alternate in polarity.

According to a further example there is provided a wearable device for attachment to an ear of a user, the wearable device comprising: an earpiece including a speaker and a first magnetic element a body section including a hook for attachment about the ear of a user and a second magnetic element; and a magnetometer configured to measure a magnitude of a magnetic field; wherein the earpiece and body section are configured so that when the body section is hooked about the ear, the first magnetic element and second magnetic element are adapted to magnetically couple through the ear to retain the device in place; and wherein the magnetometer is configured and arranged to detect a degree of magnetic coupling between the first magnetic element and the second magnetic element.

The detected degree of magnetic coupling can be at least partially indicative of under-coupling between the earpiece and body section when the detected degree of magnetic coupling is below a first threshold.

The detected degree of magnetic coupling can be at least partially indicative of adequate coupling between the earpiece and body section when the detected degree of magnetic coupling is equal to or above a first threshold and below a second threshold.

The detected degree of magnetic coupling can be at least partially indicative of over-coupling between the earpiece and body section when the detected degree of magnetic coupling is equal to or above a second threshold.

The detected degree of magnetic coupling can be at least partially indicative of a storage state when the detected degree of magnetic coupling is equal to or above a third threshold.

The wearable device can be configured such that the value(s) of at least one threshold are user-configurable.

The wearable device can be configured to determine the value(s) of at least one threshold based on user feedback.

The wearable device can be configured to provide feedback to the user based at least partially on the detected degree of magnetic coupling.

The feedback can indicate that the earpiece and body section are under-coupled.

The feedback can indicate that the earpiece and body section are adequately coupled.

The feedback can indicate that the earpiece and body section are in a storage state.

The feedback can include an audible component.

The feedback can include a visible component.

The feedback can include a haptic component.

The wearable device can be configured to adjust the coupling between the earpiece and body section in response to the detected degree of magnetic coupling.

The first magnetic element and/or second magnetic element can comprise an electromagnet, and adjusting the coupling between the earpiece and body section can comprise adjusting a current of the electromagnet.

Adjusting the coupling between the earpiece and body section can comprise adjusting the position of the first magnetic element and/or second magnetic element.

The wearable device can be configured to enter a device mode at least partially based on the detected degree of magnetic coupling.

The wearable device can be configured to enter a sleep mode when the detected degree of magnetic coupling indicates that the earpiece and body section are in a storage state.

The wearable device can be configured to enter a wake mode when the detected degree of magnetic coupling indicates that the earpiece and body section are no longer in a storage state.

The magnetometer can be a Hall effect sensor.

The earpiece can include the magnetometer.

The body section can include the magnetometer.

The earpiece and/or body section can include a processor.

The processor can include a media player.

The earpiece and/or body section can include a wireless communication unit.

The wireless communication unit can be configured to communicate with a cellular communication system.

The wireless communication unit can be configured to communicate with a global positioning system.

It is acknowledged that the terms “comprise”, “comprises” and “comprising” may, under varying jurisdictions, be attributed with either an exclusive or an inclusive meaning. For the purpose of this specification, and unless otherwise noted, these terms are intended to have an inclusive meaning—i.e., they will be taken to mean an inclusion of the listed components which the use directly references, and possibly also of other non-specified components or elements.

Reference to any document in this specification does not constitute an admission that it is prior art, validly combinable with other documents or that it forms part of the common general knowledge.

DETAILED DESCRIPTION

FIG.1depicts an example of a wearable device1. The wearable device1is designed to be worn on or around the ear of a user when in use.

The wearable device1comprises an earpiece10and a body section20. The earpiece10is positioned in use proximate the user's ear canal so that the earpiece10can play audio for the user. The earpiece10includes a speaker12for this purpose. The speaker12is in communication with circuitry90which is explained in more detail below and with reference toFIG.14. AlthoughFIG.1depicts the circuitry90within body section20, this is purely schematic and is not intended to be limiting. The earpiece10may also be configured so that a length of the earpiece10can be adjusted, which is described in more detail below.

The body section20includes a hook22for attachment about the ear of a user. The hook22is typically configured to engage around the upper part of the region connecting the ear to the skull of a user when the hook22is attached about the ear. The hook22may be comparatively distinct from the remainder of the body section20. Alternatively, the body section20may be generally formed in the shape of a hook22.

The earpiece10and body section20may be configured so that the earpiece10can rotate relative to the body section20, as described in more detail below.

In the example depicted inFIG.1, the earpiece10and body section20are connected by a connector30. The connector30may be configured to allow communication between the earpiece10and body section20through a wired connection. The connector30may alternatively or additionally have some rigidity and may bias the earpiece10towards the body section20, thereby helping to retain the wearable device1to the user's ear when in use. However, in other examples, the wearable device may not include connector30. In these examples, the earpiece10and body section20may communicate wirelessly, and the wearable device1may be retained to the user's ear without the use of connector30.

FIG.2depicts a further example of a wearable device1. Like reference numbers refer to the same elements as inFIG.1.

In this example, the wearable device1is retained in place through magnetic forces between the earpiece10and body section20. To this end, the earpiece10further includes a first magnetic element16whilst the body section20further includes a second magnetic element26. The first magnetic element16and second magnetic element26can be aligned with one another so that the mutual attraction between the two secures the wearable device1to the user's ear. In other words, the earpiece10and body section20are configured so that when the body section20is hooked about the ear, the first magnetic element16and second magnetic26element are adapted to magnetically couple through the ear to retain the wearable device1in place.

In the example depicted inFIG.2, the first magnetic element is located at a distal end101of the earpiece10, whilst the second magnetic element26is positioned within the body section20so as to be proximate the concha of the ear of the user when the body section20is attached to the ear of the user.

However, either the first magnetic element16or second magnetic element26may be positioned differently in other examples. In still further examples, both of the first magnetic element16and second magnetic element26may be positioned elsewhere within or on the earpiece10and body section20.

In some examples, both the first magnetic element16and second magnetic element26will comprise magnets, such as neodymium magnets. However, in some other examples, only one of the magnetic elements16&26may comprise magnets, and the other magnetic element may be a magnetic material, such as ferromagnetic steel. Materials which temporarily respond or are weakly magnetised in the presence of magnetic fields, such as annealed iron, could also be used.

Furthermore, either or both of the first magnetic element16and second magnetic element26may comprise an electromagnet in some examples. These may be particularly advantageous when a high degree of control over the magnetic field strength of the associated magnetic element is desired, even at the expense of added complexity and power consumption. In other examples where switchable or controllable magnetic elements are desirable, the first magnetic element16and second magnetic element26may comprise electropermanent magnets.

FIG.3depicts the wearable device1ofFIG.2worn on the ear50of the user. The body section20is positioned behind the ear50of the user and the hook22is attached about the ear50. The portions of the body section20which are positioned behind the user's ear50from the perspective ofFIG.3are shown in dashed lines. The earpiece10sits on or within the ear50proximate the ear canal so that audio played through speaker12can be heard by the user. The first magnetic element16and second magnetic26element are positioned so that they magnetically couple through the ear50. This magnetic coupling urges the earpiece10and body section20against either side of ear50with enough force to retain the wearable device1in the desired place. The second magnetic element26is positioned so that it is proximate to the concha52of the ear50when the body section20is attached to the ear50.

The first magnetic element16and second magnetic element26may each comprise a single element. Alternatively, either the first magnetic element16and/or the second magnetic26element may comprise a plurality of magnetic sub-elements.

One such example is depicted inFIG.4. The body section20of the wearable device1is only shown in part for the sake of clarity. In this example, the first magnetic element16comprises a plurality of magnetic sub-elements161,162,163,164which are spaced at intervals within or on the earpiece10while the second magnetic element26comprises a single element. The magnetic sub-elements161,162,163,164of the first magnetic element16are spaced apart and are arranged so that second magnetic element26can be aligned with any one of the magnetic sub-elements161,162,163,164. This means that the first magnetic element16and second magnetic element26can be magnetically coupled through the ear50of the user at a plurality of different positions. The position of the earpiece10with respect to the body section20can therefore be adjusted whilst the wearable device1is retained in place in order to suit the ear50of a particular user. In the configuration depicted inFIG.4, the first magnetic sub-element161is coupled to the second magnetic element26.

Although the particular example shown inFIG.4includes four magnetic sub-elements161,162,163,164, other examples may have a different number of magnetic sub-elements.

Other examples of a wearable device1may achieve a similar result by using a second magnetic element26which comprises a plurality of magnetic sub-elements, whilst the first magnetic element16may comprise a single element. Both the first magnetic element16and second magnetic element26could also comprise a plurality of magnetic sub-elements in still further examples.

Furthermore, in the example depicted inFIG.4, the plurality of magnetic sub-elements161,162,163,164are spaced apart in a single line and are spaced apart in approximately even intervals. However, the magnetic sub-elements161,162,163,164could also be spaced apart in uneven intervals and may be spaced in a different shape. For example, the magnetic sub-elements161,162,163,164may be spaced apart in a single line that runs substantially horizontally (with respect toFIG.4) in some examples. In other examples, a two-dimensional grid of magnetic sub-elements could be used to allow the first magnetic element16and second magnetic element26to be magnetically coupled through the ear of the user at a plurality of different positions that are spaced apart in two dimensions. In still further examples, the magnetic sub-elements could be spaced apart in a circular shape or some other shape.

In still further examples, the earpiece10and body section20may not include magnetic elements, and the wearable device1may be retained in place using other means. For example, the earpiece10and wearable device20may be connected by a connector which urges the two together. The wearable device1may then be retained in place by the biasing force effectively clipping the wearable device1to the user's ear50.

In some examples of the wearable device1, the earpiece10and body section20may be configured such that the earpiece10can rotate relative to the body section20when the wearable device1is worn on the ear50of the user.

FIG.5depicts an example of an exploded view of an earpiece10and connector30exploded along line40. The earpiece10and connector30share a rotatable connection formed by connector component41and an earpiece component42. The connector component41and/or earpiece component42may comprise magnetic rotation elements. The magnetic rotation elements may be axially magnetised magnetic elements. The axially magnetised magnetic elements may be rotationally symmetric about the axis of rotation of the earpiece10with respect to the connector30. The connector30connects to the body section (not pictured inFIG.5) which is attached to the user's ear via a hook and is substantially fixed with respect to the user's ear. The rotatable connection allows the earpiece10to rotate with respect to the body section of the wearable device.

The rotatable connection may allow the earpiece10to rotate continuously through a range of angles. For example, the rotatable connection may allow the earpiece10to continuously rotate through an arc of 90°. The rotatable connection could include abutting stops or other elements to limit the possible rotation of the earpiece10with respect to the connector30and body section of the wearable device.

If the connector30is used to communicate data or information between the earpiece10and body section, the rotatable connection40may include, for example, a slip ring so that rotation of the earpiece10does not interfere with the connection to the body section. Alternatively, there may be a wireless data and/or power connection between the body20and earpiece10.

In examples of the wearable device which do not include a connector30, rotation between the earpiece10and body section20may be achieved through a suitable configuration of the first magnetic element16and second magnetic element26. One such example is shown inFIG.6. In this example, the first magnetic element16and second magnetic element26are axially magnetized so that when the two are magnetically coupled together to retain the wearable device in place, the direction of their respective magnetic fields are rotationally symmetric about their axis of coupling. Furthermore, the first magnetic element16is cylindrical or disc-shaped so that its top face is circular when viewed along the axis of coupling. This means that the magnetic flux which passes through the second magnetic element26does not substantially vary as the first magnetic element16is rotated about its axis of coupling. The first magnetic element16can then rotate about the axis of coupling without altering the strength of the coupling to the second magnetic element26.

It should be noted that the term ‘axis of coupling’ is used above as a matter of convenience to better explain an example of the wearable device1and is not intended to impose any limitation on the first magnetic element16or second magnetic element26. In real life, there is no single one-dimensional line along which the first magnetic element16and second magnetic element26must be precisely co-linear in order to couple together. The two magnetic elements16&26may couple together if they sufficiently overlap with one another, and this may occur along any number of axes depending on the relative sizes and strengths of the magnetic elements16&26. Furthermore, the magnetic fields produced by each magnetic element16&26will have non-axial components and therefore may not be rotationally symmetric about the axis of coupling in the strictest sense.

In other examples, the earpiece10may be configured to rotate between a plurality of discrete angular positions relative to the body section20(akin to an over-centre or ratchet-like mechanism). One such example is shown inFIG.7. The user's ear and much of the body section20are not depicted for the sake of clarity.

In this example, the first magnetic element16comprises a plurality of magnetic sub-elements161-166that are substantially arranged in a ring, whilst the second magnetic element26comprises a complementary plurality of magnetic sub-elements261-266that are also substantially arranged in a ring. The magnetic sub-elements161-166&261-266of each magnetic element16&26can be axially magnetised so that the first magnetic element16and second magnetic element26couple through the user's ear when the respective sub-elements161-166&261-266of each magnetic element16&26are aligned. If the earpiece10is rotated, the magnetic sub-elements161-166&261-266are brought out of alignment with each other and the coupling between the earpiece10and body section20lessens. If the earpiece10continues to be rotated, the magnetic sub-elements161-166&261-266are brought back into alignment and the coupling between the earpiece10and body section20increases.

In these examples, the number of angular positions between which the earpiece10may rotate is dictated by the number of magnetic sub-elements within each magnetic element16&26.

A similar arrangement of complimentary magnets could also be used to create a rotational connection in an example of the wearable device that includes a connector. One such example is shown inFIG.8. In this example, the rotatable connection includes a connector component41and earpiece component42which comprise a plurality of magnetic sub-elements which are complimentarily arranged substantially in a ring and function in substantially the same way as the magnetic sub-elements161-166&261-266ofFIG.7as described above. In this example, the wearable device includes a connector30and the earpiece may or may not include a first magnetic element.

FIG.9depicts a variation of the example depicted inFIG.7. In this example, each magnetic element16′ &26′ comprises a plurality of axially magnetised magnetic sub-elements161′-166′ &261′-266′ that are each substantially arranged in a ring and alternate in their magnetic polarity (indicated by alternating black and white colouring.) This example of the wearable device functions in much the same way as the wearable device depicted inFIG.7, except that rotating the earpiece10to bring complimentary magnetic sub-elements161′-166′ &261′-266′ out of alignment causes conflicting magnetic sub-elements (i.e. having the same polarity) into alignment. This may ensure that the earpiece10is urged or biased into a stable position at one of the plurality of discrete angular positions.

This arrangement of magnetic sub-elements161′-166′ &261′-266′ could also be integrated into a rotatable connection between a connector and earpiece in a similar way to the rotatable connection ofFIG.8.

It will be understood that in real life, the aforementioned plurality of angular positions are not ‘discrete’ in the strictest sense and are not restricted to single angular values defined with absolute precision. There may be some amount of play on either side of each ‘discrete’ angular position that the earpiece10may adopt with respect to the body section20, and the earpiece10may be able to be continuously rotated within this permissible amount of play. The amount of play will depend on the example of the wearable device1. However, play within a few degrees is envisaged here.

In other examples of the wearable device1, the magnetic rotation elements and/or the first magnetic element16& second magnetic element26may comprise magnetic elements or magnetic sub-elements which are not axially magnetised. For example, the magnetic rotation elements or magnetic elements may be arranged in a Halbach array if a low stray field is desired.

In examples of the wearable device1which include a connector30, rotation of the earpiece10with respect to the body section20may be achieved by a non-magnetic rotatable connection between the two. For example, the rotatable connection may include a bearing at the point where the earpiece10is connected to the connector30in order to allow continuous rotation of the earpiece10with respect to the body section20over some range of angles. The bearing may have a friction fit with its respective journal (using e.g. a rubber gasket) so that the earpiece is freely rotatable when force is applied, but has sufficient stiction to remain a given angle once it has been rotated. The rotatable connection could alternatively include a ratchet and pawl to allow the earpiece10to rotate between a plurality of discrete angular positions relative to the body section20. The rotatable connection could include a screw-style rotation mechanism.

In some examples, the earpiece10may be configured so that it is rotatable relative to the body section20about a point of rotation located within a region defined by the perimeter of the concha of the ear50of the user. The point of rotation may additionally or alternatively be located substantially within the user's ear50when the wearable device1is worn on the user's ear50.

For example, the point of rotation may be located substantially within the concha of the user's ear when the wearable device is worn, and the point of rotation may be lower than the anti-helix, tragus, and/or anti tragus of the user's ear. Configuring the earpiece10so that its point of rotation rests within a region defined by the perimeter of the concha of the user's ear, substantially within the concha of the ear, or substantially within a different part of the user's ear may allow the earpiece to fit a greater range of different ear sizes and different ear shapes.

For example, the speaker12of the earpiece10may be located towards or at a proximal end of the earpiece10and may be intended to be positioned over the user's ear canal when the wearable device1is attached to the user's ear50. However, natural variations in the shape and/or size of the user's ear50may mean that the speaker12does not rest in its intended position when the wearable device1is worn. The earpiece10therefore may need to be rotated with respect to the body section20so that when the wearable device10is worn, the speaker12rests over the user's ear canal as intended. Positioning the point of rotation so that it is located within a region defined by the perimeter of the concha of the user's ear50may allow the earpiece10to be rotated over a greater range of angles and may enable the earpiece10to fit a wider range of ear sizes and ear shapes.

The earpiece10may also be configured so that a length of the earpiece10may be adjusted. Being able to adjust a length of the earpiece10may allow the earpiece10to fit a wider range of ear sizes and ear shapes.

One example earpiece10with an adjustable length is depicted inFIG.10. In this example, earpiece10comprises a first portion110and a second portion120. The second portion120of the earpiece defines a plurality of apertures145, whilst the first portion110of the earpiece comprises at least one protrusion146. The apertures145and at least one protrusion146are complimentary and can releasably couple to one another so that a length of the earpiece10can be adjusted. The protrusion or protrusions146may have a rounded end so that the first portion110of the earpiece can slide over the second portion120of the earpiece to adjust a length of the earpiece until the protrusions146align with new apertures145. In other examples, the second portion120of the earpiece10may comprise protrusion(s)146, whilst the first portion110of the earpiece10may defines apertures145.

An additional example of an earpiece10with an adjustable length is depicted inFIG.11. In this example, the earpiece10comprises a first portion110and a second portion120. The first portion110and second portion120are configured such that the earpiece10can telescopically extend or retract so that a length of the earpiece10can be adjusted. For example, the first portion110may define a race or groove147for a complimentary slider (such as a sliding block or ball bearing148) of the second portion120. The complimentary slider (e.g. ball bearing148) may then slide forwards or backwards within the race or groove147so that the earpiece10can telescopically extend or retract. An appropriate locking mechanism may be included to lock the earpiece10at a particular length.

In an alternative example, the earpiece may include a first portion that comprises a male thread and a second portion that comprises a complementary female thread which is configured to engage with the male thread of the first portion. The first portion and second portion may be configured so that the engagement between the mating threads can be adjusted to vary the length of the earpiece. In other words, the overlap between the complimentary threads can be adjusted to vary the length of the earpiece. This may mean that the proximal section must rotate with respect to the distal section in order to vary a length of the earpiece.

In a further example, the earpiece can include a first portion and second portion that can move longitudinally relative to one another. The first portion and second portion can be biased in generally opposite directions by a resilient member, such as a spring (e.g. a compression spring or volute spring) or a sufficiently resilient foam segment. The resilient member is compressible so as to allow relative longitudinal movement between the first portion and second portion. The user of the wearable device can compress the first portion and second portion of the earpiece together to shorten the length of the earpiece before inserting the earpiece into their ear. When the earpiece is suitably in place, it is released by the user and the extends under the biasing action of the resilient member until the first portion and/or second portion abut a portion of the user's ear.

In another example, the earpiece can include a first portion and second portion that are connected by a bellows, similar to a concertina hinge or an articulated hinge on a drinking straw. The bellows is extendible and retractable so that a user can adjust its length by pulling or pushing the first portion and second portion of the earpiece towards or away from one another. The bellows can be sufficiently rigid so that it retains its length once it has been compressed or extended into a given configuration. The user can then adjust the length of the earpiece by compressing or extending the first section with respect to the second section, thereby adjusting the length of the bellows and the earpiece as a whole.

The adjustability of the wearable device may be increased by allowing relative rotation between the earpiece and body section and including an earpiece with an adjustable length. This may mean that the wearable device is more comfortable or more compatible with a greater number of users who may have varying ear sizes and ear shapes. An increased adjustability may also reduce air leakage between the earpiece and the user's ear, thereby improving audio quality. This also means that the earpiece may not require the plastic or silicone tip that conventionally may be included to help seal gaps between the earpiece and the user's ear, potentially reducing waste and cost for the user.

Variations in the size and/or shape of the user's ear may also affect the comfort and fit of wearable devices which include magnetic elements that magnetically couple through the ear to retain the device in place. For example, a wearable device may be worn as intended but the size and/or shape of the user's ear may be such that the magnetic elements are spaced further apart than intended. The magnetic coupling between the magnetic elements may be insufficient to retain the device in place and the wearable device may be liable to become displaced during e.g. physical exercise.

Similarly, a user's ear may be sized and/or shaped such that the magnetic elements are spaced closer together than intended. The magnetic coupling between the magnetic elements may be excessive and may pinch the user's ear or otherwise cause discomfit.

A user may also incorrectly wear the device so that the magnetic elements couple through the user's ear at an unintended location. This may cause the magnetic elements to couple too strongly or couple too weakly depending on the size/shape of the ear and the position through which the elements couple.

Furthermore, users may be unsure as to whether they have correctly coupled the magnetic elements of the device so that it is secure on or about their ear. They may need to rely on sight or feel in order to gauge whether the magnetic elements have coupled properly to retain the device in place. The user may also be concerned that the wearable device may fall off as they often worn during strenuous activity or exercise. This can cause the user to intentionally restrict their exertion for fear of the magnetic coupling failing mid-activity.

FIG.12depicts an example of a wearable device1for attachment to an ear of a user. The wearable device1comprises an earpiece10including a speaker12and a first magnetic element16, a body section20including a hook22for attachment about the ear of a user and a second magnetic element26, and a magnetometer70configured to measure a magnitude of a magnetic field. The earpiece10and body section20are configured so that when the body section20is hooked about the ear, the first magnetic element16and second magnetic element26are adapted to magnetically couple through the ear to retain the device1in place.

The magnetometer70is configured and arranged to detect a degree of magnetic coupling between the first magnetic element16and second magnetic element26.

The earpiece10depicted inFIG.11may be configured to rotate relative to the body section20. The earpiece10may be configured so that a length of the earpiece10can be adjusted. The earpiece depicted inFIG.11includes a connector30, although other examples may not include a connector30.

The magnetometer70may be a Hall effect sensor, although other types of magnetometers may also be used. The magnetometer70may be installed within or on the body section20or may be installed within or on the earpiece10. Other examples may include magnetometers70in both the earpiece10and body section20. Further examples may include a magnetometer70in a component other than the earpiece or body section, such as a connector30(if present).

The magnetometer70may be configured to detect the degree of magnetic coupling between the first magnetic element16and second magnetic element26by measuring a magnitude of a magnetic field. The magnetometer70may alternatively or additionally be configured to detect the degree of magnetic coupling between the first magnetic element16and second magnetic element26by measuring a magnitude of a magnetic flux.

The measured magnitude of the magnetic field and/or magnetic flux may be quantified and converted into a quantitative and/or qualitative degree of magnetic coupling using a known relationship. For example, the detected degree of magnetic coupling may be quantified into a value ranging from 0 to 100, wherein each value corresponds to a quantified magnetic field magnitude and/or magnetic flux. For example, a magnetic coupling of 100 may correspond to the measured magnetic field magnitude/flux when the earpiece10and body section20are brought into contact with one another. This measurement may be performed at the factory in order to calibrate the relationship between the readings of the magnetometer70and the corresponding degree of magnetic coupling. Other magnetic coupling values could be calibrated by e.g. taking magnetometer70readings at various earpiece10—body section20separation distances.

In other examples, the calibration may be performed by the user positioning the earpiece10with respect to the body section20. For example, the user may be instructed to place the earpiece10adjacent to the body section20and to indicate when the two are positioned accordingly. The magnetometer70may then perform a measurement and may equate the measured value with maximum coupling between the two magnetic elements.

Other examples may use other relationships to calibrate or relate the magnitude and/or flux as measured by the magnetometer70to the detected degree of magnetic coupling. Alternatively, the detected degree of magnetic coupling may correspond to the magnitude and/or flux as measured, without any additional scaling or conversion.

The measured magnitude/flux and/or quantified degree of magnetic coupling may be compared against one or more pre-determined reference values to qualitatively describe the degree of magnetic coupling between the two elements16&26. The reference values may also be user-determined or determined through use of the wearable device1, as will be described below. The comparison between the quantified magnetic field and/or magnetic flux and reference values may be used to at least partially indicate a degree of magnetic coupling between the first magnetic element and second magnetic element in a qualitative way.

For example, the degree of magnetic coupling between the two elements may be qualitatively described by categorising the degree of magnetic coupling using one or more of the following descriptors:

Under-coupled: Weak and insufficient coupling. The first magnetic element16and second magnetic element26may be coupled to some extent, although the wearable device1may not be retained by the magnetic coupling and may be liable to detach from the user's ear.

Adequately coupled: Coupled to a certain degree so that the wearable device1is comfortably and securely retained on the user's ear.

Over-coupled: Coupled to the point where the wearable device1is possibly uncomfortable or is undesirably tight on the user's ear.

In a storage state: Coupled so strongly that the wearable device1is likely stored away (i.e. is not being worn) or is being charged. The earpiece10and body section20may be adjacent or near-adjacent if the wearable device is in a storage state.

In some examples, the wearable device1may not be configured to qualitatively describe the magnetic coupling using all of these categories. For example, the wearable device1may only be configured to indicate whether the first magnetic element16and second magnetic element26are adequately coupled or are under-coupled. In further examples, the wearable device1may use an entirely different schema to qualitatively describe the degree of magnetic coupling as detected by the magnetometer70. In still further examples, the wearable device1may not qualitatively describe the detected degree of magnetic coupling at all, and the detected degree of magnetic coupling may be described purely quantitatively.

FIG.13illustrates one example of how the detected degree of magnetic coupling may be at least partially indicative of under-coupling, adequate coupling, over-coupling, and/or storage of the earpiece and body section. In this example, the detected degree of magnetic coupling80has been converted into a scale between 0-100, as described above, and represented on graph200. The detected degree of magnetic coupling is: at least partially indicative of under-coupling between the earpiece and body section if the detected degree of magnetic coupling is below a first threshold81; at least partially indicative of adequate coupling between the earpiece and body section if the detected degree of magnetic coupling is above the first threshold81and below a second threshold82; at least partially indicative of over-coupling between the earpiece and body section if the detected degree of magnetic coupling is equal to or above the second threshold82; and at least partially indicative of a storage state when the detected degree of magnetic coupling is equal to or above a third threshold83.

In this example, using arbitrary values, the first, second, and third thresholds81,82,83are expressed in terms of the detected degree of magnetic coupling which is scaled between 0-100. However, in other examples, the various thresholds81-83may be expressed in terms of the measured magnitude and/or flux as measured by the magnetometer70without any kind of scaling, as discussed above.

The calibration between the detected degree of magnetic coupling and the qualitative description of the coupling between the earpiece10and body section20may initially be defined by the manufacturer. In some examples, the relationship or calibration may additionally (or alternatively) be user-configurable. For example, the user may be able to manually set some or all of the values of the first threshold81, second threshold82, and/or third threshold83corresponding to each of the regimes. If fewer qualitative categories than the four discussed above are used, some or all of the corresponding thresholds81-83(or ranges, or whatever else is used to calibrate the detected degree of magnetic coupling with its qualitative description) may be user-configurable accordingly.

This functionality may be particularly useful to accommodate a wide variety of ear shapes and ear sizes. For instance, whilst a factory calibration of the wearable device1may be suitable for most users, other users may need or want to configure the calibration according to their own requirements. As one example, a user with particularly large ears may find that an adequate coupling between the earpiece10and body section20for their ear is classified as an under-coupling according to the factory calibration due to the unusually large distance between the first magnetic element16and second magnetic element26. Similarly, a user with particularly small ears may find that an adequate coupling between the earpiece10and body section20for their ear is classified as an over-coupling according to the factory calibration due to the unusually small distance between the first magnetic element16and second magnetic element26. Allowing the user to configure the calibration or relationship between the detected degree of magnetic coupling and the qualitative description thereof means that the user can account for the fit and comfort of the wearable device given their ear shape and size.

Additionally or alternatively, the wearable device may be configured to learn the relationship or calibration between the detected degree of coupling and qualitative description thereof based on feedback from the user. With respect to the example depicted inFIG.13, the wearable device1may be configured to determine the value(s) of the first threshold81and/or second threshold82and/or third threshold83based on user feedback.

For example, the user may be asked to magnetically couple the earpiece10and body section20through their ear in a certain way and may be asked to provide an indication of comfort or discomfort. The indication could be qualitative (e.g. ‘comfortable’ vs ‘uncomfortable’) or may be quantitative (e.g. measured on a scale from 0-10, with 10 being comfortable and 0 being uncomfortable.) The user may input their feedback using an interface such as a button, speaking into a microphone, or any other appropriate way. This may be repeated for a number of earpiece10/body section20distances and/or positions. If either of the first magnetic element16or second magnetic element26comprises an electromagnet, the strength of the electromagnet may be varied to vary the degree of coupling between the two. Alternatively, the position of a magnet may be changed, for example using a small geared motor to move a magnet relative to the body or earpiece to adjust the strength of coupling. The wearable device1may then correlate the detected degree of magnetic coupling with the feedback of the user in order to determine the value of the threshold(s), range(s), or whatever else is used to calibrate the detected degree of magnetic coupling with its qualitative description.

The wearable device1may also be configured to provide feedback to the user based at least partially on the detected degree of magnetic coupling. The feedback could be based on the quantitatively detected degree of magnetic coupling (e.g. the raw measurement of the magnetometer and/or the scaled/calibrated degree of magnetic coupling) and/or on the qualitative description of the magnetic coupling. For example, the feedback could indicate that the earpiece and body section are under-coupled, adequately coupled, over-coupled, and/or in a storage state. This feedback could help the user position, align, or otherwise adjust the wearable device on his or her ear. For example, if the feedback indicates that the earpiece10and body section20are under-coupled, the user may bring the earpiece10closer to the body section20to improve the coupling therebetween. If the feedback indicates that the earpiece10and body section20are over-coupled, the user may distance the earpiece10from the body section20to reduce the degree of coupling between the two.

The feedback may include an audible component, a visible component, and/or a haptic component. For example, the feedback could be played through the speaker12of the earpiece10and may let the user know how the earpiece10and body section12are qualitatively coupled. Haptic feedback could additionally or alternatively be provided by vibration of the earpiece10and/or body section20. The earpiece10and/or body section20could include a light or LED which may blink or turn on to indicate the coupling status of the earpiece10and body section20. Although the earpiece10and body section20are usually not visible to the user when the wearable device1is worn, this feedback may be particularly useful to indicate that the wearable device is in a storage state.

The wearable device1may be configured to adjust the coupling between the earpiece10and body section20in response to the detected degree of magnetic coupling as detected by the magnetometer70. This may allow the wearable device1to correct for unideal coupling without user intervention. The adjustment may be made on the basis of the raw measurements of the magnetometer70(e.g. magnitude and/or magnetic flux), scaled measurements (as discussed above), or qualitative description or categorisation of the coupling.

For example, the first magnetic element16and/or second magnetic element26may comprise an electromagnet, and the wearable device1may adjust the coupling between the earpiece10and body section20by adjusting a current of the electromagnet. This may increase or decrease the strength of the magnetic field produced by the electromagnet in order to adjust the coupling between the earpiece10and body section20accordingly.

Additionally or alternatively, the wearable device1may be configured to adjust the coupling between the10earpiece and body section20by adjusting a position of the first magnetic element16and/or second magnetic element20. For example, the first magnetic element16and/or second magnetic element26may be mounted on a movable mount that can be positioned by an actuator. The actuator may actuate to bring the magnetic elements16&26closer together or further apart to adjust the coupling between the earpiece10and body section20.

The wearable device1may be configured to enter a device mode at least partially based on the degree of magnetic coupling between the first magnetic element16and second magnetic element26as detected by magnetometer70. As used herein, a ‘device mode’ broadly refers to a way in which the device operates. For example, the wearable device1may be configured to enter a sleep mode when the detected degree of magnetic coupling indicates that the earpiece10and body section20are in a storage state. If the wearable device1is in a sleep mode, it may conserve power by e.g. reducing communications or transmissions it makes with external transceivers, minimising visual/audible/haptic feedback, and/or reducing background processes. Alternatively, the wearable device1may turn completely off when it is in a sleep mode. The wearable device may also power down any electromagnets if present, although the wearable device may need to account for any corresponding change to the detected degree of magnetic coupling that may ensue.

The wearable device1may also be configured to enter a wake mode when the detected degree of magnetic coupling indicates that the earpiece10and body section20are no longer in a storage state. For example, when the user decouples the earpiece10from the body section20so that the wearable device is no longer in storage and/or being charged, the wearable device1may re-initiate communications with external transceivers, may provide visual/audible/haptic feedback to the user, and/or increase background processes. The wearable device1may also power up any electromagnets if present, although the wearable device may need to account for any corresponding change to the detected degree of magnetic coupling that may ensue.

FIG.14depicts an example circuit that may be included in the wearable device1. It will be appreciated that this circuit may be used in any of the examples described herein. Other circuits with other circuit elements may also be used.

The circuit1000includes a processor1010having associated storage1020, typically flash RAM, and a power supply1030supplying power from a battery1040. The battery is preferably rechargeable, although disposable batteries could also be used. The processor1010may be positioned inside the earpiece10, body section20, and/or an entirely separate component of the wearable device1. The processor1010may include a media player used to play audio media (e.g. music) through at least the speaker12of the earpiece10. The audio media may be stored in storage1020or may be received wirelessly. To this end, the circuit1000may include a wireless communication unit1050. The wireless communication unit1050may enable the earpiece10to wirelessly communicate with the body section20and may also or alternatively allow the wearable device1to communicate with external entities using e.g. Bluetooth, Wi-Fi, or other communication protocols. The wireless communication1050unit may be configured to communicate with a cellular communications system and/or a global positioning system. The wireless communication unit1050may include an aerial1060.

The circuit may include one or more user inputs such as buttons through interface1070. These may be used to control the volume of the speaker12of the earbud10or otherwise control audible media. These may also be used to provide feedback to the wearable device1to calibrate how the detected degree of magnetic coupling is qualified, as described above.

The circuit1000may also include a range of sensors1080such as a heart rate monitor, temperature sensor, movement sensor, accelerometer, location sensor, GPS, gyroscope, altimeter, etc. A microphone1090may also be included.

Disclosed below are wearable devices for attachment to an ear that may be a simple earphone or which may include a media player and/or wireless communication circuit and/or a microprocessor and/or bio sensors or other sensors. For a simple wired earphone a wire may provide a signal to drive an earphone in the device. For a wireless embodiment the device will require a battery and a circuit for receiving wireless signals and driving the earphone. The circuit may include a microprocessor to receive information from sensors and to modify the operation of the device based on sensed information and wireless information received.

FIGS.15to19show a wearable device2001including a body section2002in the form of a “hook” configured to engage around the upper part of the region connecting the ear to the skull of a user. The hook may be dimensioned to surround a circle having a radius of between 20 to 32 mm, preferably 25 mm to 27 mm. The body section may have a length of between 10 mm and 100 mm and a thickness of between 0.1 mm and 20 mm. The body section2002may be flexible to wrap around the ear of a user and may be twisted so as to direct the weight of the body section into the skull of a user. A coating may be provided on internal faces for user comfort (otherwise the attractive force between the magnets may impose an uncomfortable force on a user's ear) formed of a thermoplastic elastomer or silicone (siloxane) of hardness range between Shore A30to Shore A90, preferably about Shore A40. Due to the strong attractive forces of the magnets the silicon may not be able to retain the magnets and the magnets may need to be physically retained by a rigid element of the body or bonded to the body.

In this embodiment an earpiece2003is connected to the body section via a flexible connection, in this case a cable2004which provides an electrical signal from the body section to drive speaker2005. Earpiece2003may suitably have a length of between 13 mm and 22 mm and a width of between 10 mm and 16 mm. The cable2004may suitably have a length of between 10 mm and 60 mm and a width of between 0.1 mm and 8 mm.

As shown inFIG.17a distal face2008of earpiece2003is disposed at an angle x with respect to the face2009of the earpiece which opposes the ear canal. The angle x is preferably within the range of 30° and 60° and preferably between 50° and 55°. This angle is important to correctly dispose the earpiece with respect to the ear canal but also to apply the correct forces to the earpiece and body section so as to urge them tightly against the ear of a user so as to be secured during vigorous exercise.

The body section2002includes a magnetic element2007and the earpiece includes a magnetic element2006. It will be appreciated that one of magnetic elements2006and2007may be a magnet and the other may simply be a magnetic material, such as a ferromagnetic steel, or both may be magnets. Small, strong neodymium magnets are preferred. In the following description both elements will simply be referred to as magnets but it will be appreciated that any elements providing suitable magnetic attraction between them may be utilized. That being said, high strength permanent magnets do produce strong magnetic attraction for small component size.

In the embodiment ofFIGS.15to19a single magnet2006is provided on the earpiece2003and a single magnet2007is provided on the body2002. Magnet2006may be a permanent magnet having a volume of between 6 mm3and 440 mm3, preferably between 150 mm3and 175 mm3, having a magnetic field strength of between 368 gauss and 1200 gauss. Magnet2007is preferably a permanent magnet having a volume of between 2 mm3and 63,000 mm3, preferably between 400 mm3and 440 mm3, having a magnetic field strength of between 4500 gauss and 8000 gauss (typically producing a pull of between 3 to 5 pounds). The magnets may suitably be in the form of a cylinder, rectangular block, hexagonal tube, multiple individual magnetic beads or semicylinder etc.

In this embodiment the dimensions of body section2002and length of flexible cable2004and positions of the magnets will be optimized for a range of standard ear shapes.

In use the body section2004is hooked over about the ear of a user as shown inFIGS.18and19and the earpiece2003is brought into alignment with the body section2002so that magnets2006and2007are strongly attracted to one another and hold the body section2002and earpiece2003tightly against a user's ear. The magnets are positioned and the earpiece2003and body section2002configured so that the magnets are proximate the concha of a user's ear when in use. Attachment in this region securely attaches the device to a user's ear and forces the earpiece and body section towards the ear to secure them in place. Further, the end of the body section2002proximate cable2004may be flexible so that as the magnets attract the distal end of the body section may wrap around the ear of a user to tightly conform to the shape of the ear. Alternatively or additionally cable2004may be formed of a stretchable material to enhance this effect.

Referring now toFIG.20a modified embodiment for controlling earpiece and body section alignment is shown (like components being given like numerals). In this embodiment a pair of magnets2011and2012are provided on earpiece2003and a corresponding paid of magnets are provided on body section2002. Magnets2012and2014attract each other and magnets2011and2013also attract each other. This arrangement prevents rotation of the earpiece relative to body section2002to provide more precise alignment.

Referring now toFIG.21a further modified embodiment is shown (like components being given like numerals). In this case one magnet2015is provided on earpiece2003and a series of magnets are provided on body section2002. This allows a user to align magnet2015with any one of magnets2016to2018in the position providing the best fit. This allows one design to fit tightly for a range of ears sizes. It will be appreciated that more than one magnet may be provided on earpiece2003. For example, if two magnets are provided they may align with either magnets2016and2017or2017and2018. This provided both the adjustability of this embodiment and the anti-rotation aspect of the previous embodiment.

FIG.22shows a further embodiment in which a single magnet2019is provided on earpiece2003and a single magnet2020is provided in a track2021on body section2002. The magnet2020may slide along track2020to be positioned in the optimum position for a user's ear.

Referring now toFIGS.23and24a wireless embodiment is shown including a body section2022and an earpiece2023having similar form to those shown in the previous embodiments. However, in this embodiment circuit2024of body section2022communicates wirelessly via antenna2025to antenna2026and circuit2027of earpiece2027. In this embodiment a single magnet2028is provided on earpiece2023and a single magnet2029is provided in a track2030, similar to the embodiment ofFIG.22. It will be appreciated that the other embodiments may be adopted in a wireless solution too.

FIGS.25aand25bshow a modified earpiece design in which a magnet2039may be positioned in a first retracted position with respect to earpiece2023as shown inFIG.25aand a second extended position in which magnet2039may be positioned in an extended position with respect to earpiece2023as shown inFIG.25b. In this manner the positioning of magnet2039with respect to earpiece2023may be continuously adjusted to optimally position the earpiece2023with respect to a user's ear.

Referring now toFIG.26circuit2024is shown in block diagram form. It will be appreciated that this circuit may also be utilized in the previous embodiments. It will also be appreciated that some or all of the components may be incorporated in a wearable device depending upon the functionality required.

Circuit2024includes a microprocessor2031having associated storage2032, typically flash RAM, and a power supply2033supplying power from a battery2034. Microprocessor2031may include a media player to play music stored in storage2032or supplied as a stream from communications circuit2036. Battery2034may be recharged via a cable or wirelessly. User inputs2035, such as touch sensors, allow user control of volume, mode, content etc. A communications circuit communicates with earpiece2023to supply a signal to drive a speaker via circuit2027as well as to communicate with external devices. Such external communications may include Wi-Fi, Bluetooth, cellular or other wireless communications to upload or stream content.

A range of sensors2037may be connected to microprocessor2031such as biometric or other sensors including a heart rate monitor, temperature sensor, movement sensor, accelerometer, location sensor, GPS, gyroscope, altimeter etc.

A microphone2038may also be provided for user control via a voice recognition system or to monitor environmental sound. The microphone may also be employed in a noise cancellation system.

As well as providing a record of user activity the biometric and other sensors may be used to intelligently control operation of the wearable device. The output volume of a signal supplied to the earpiece may be adjusted based on the output of one or more biometric sensor (e.g. louder during intense activity or loud background noise). A play list stored in storage2032may be selected based on the intensity of user activity. A water sensor may be provided which pauses music when the water detector detects the presence of water.

The wearable device may also communicate location and/or biometric data to a cloud based system that analyses biometric and location data and provides coaching tips, directions and other derived information to a user.

A sensor may also detect when the positioning magnets are properly aligned and generate a sound to indicate good alignment.

There is thus provided a wearable device with the following advantages:a. Increased stability of the device on the ear during energetic and varied movements.b. Centring the mass of the device on the ear in a way that increases the strength of the anchoring.c. Appropriate centre of mass and weight distribution for attachment during energetic and varied movements.d. Correct balance of pull force and cushioning to ensure secure hold over long periods of time, without causing discomfort.e. Standardisation of sizing allows for fit on wide range of ear shapes for mass market.f. Magnetic system is easy to integrate into existing manufacturing processes.g. Improved positioning of earbud to rest in good position for audio consumption.

Exemplary Embodiments

In examples, a wearable device for attachment to an ear of a user includes: an earpiece including a speaker and a first magnetic element; and a body section including a hook for attachment about the ear and a second magnetic element, wherein the earpiece is movable relative to the body section and the earpiece and body section are configured so that when the body section is hooked about the ear the first magnetic element and second magnetic element are adapted to be magnetically attracted to each other through the ear to retain the device in place.

In examples, the second magnetic element is positioned so as to be proximate the concha of the ear when the body section is worn on the ear of the user.

In examples, the hook is dimensioned to surround a circle having a radius of between 20 to 32 mm.

In examples, the hook is dimensioned to surround a circle having a radius of between 25 mm to 27 mm.

In examples, the hook is twisted so as to direct the weight of the body section into the user's skull.

In examples, the hook is flexible to wrap around the ear of a user.

In examples, the earpiece is connected to the body section via a flexible section.

In examples, the first and second magnetic elements are proximate each other the flexible section is drawn around the ear of a user in use.

In examples, the first magnetic element is located at a distal end of earpiece.

In examples, the earpiece includes a face at its distal end that is inclined at an angle of between plane 30° and 60° with respect to a face of the earpiece that engages a user's ear in use.

In examples, the earpiece includes a face at its distal end that is inclined at an angle of between plane 48° and 55° with respect to a face of the earpiece that engages a user's ear in use.

In examples, the earpiece is separate from the body section.

In examples, the earpiece communicates with the body via a wireless connection.

In examples, the body includes multiple magnets spaced at intervals to enable attachment of the earpiece at a plurality of positions to suit a range of ear shapes.

In examples, the first and second magnetic elements produce magnetic fields which maintain the earpiece in a desired orientation relative to the body.

In examples, the body section includes an extendable section to adjust the relative position of the second magnetic element with respect to the body section to allow adjustment of the position of the second magnetic element to accommodate different ear shapes.

In examples, the earpiece includes an extendable section attached to the first magnetic element allowing positioning of the first magnetic element towards or away from the earpiece to allow adjustment to accommodate different ear shapes.

In examples, the first magnetic element is a magnet having a volume of between 6 mm3and 440 mm3.

In examples, the first magnetic element has a volume of between 150 mm3and 175 mm3.

In examples, the magnetic field strength of the magnet is between 368 gauss and 1200 gauss.

In examples, the second magnetic element is a magnet having a volume of between 2 mm3and 63,000 mm3.

In examples, the second magnetic element has a volume of between 400 mm3and 440 mm3.

In examples, the magnetic field strength of the magnet is between 4500 gauss and 8000 gauss.

In examples, the wearable device includes a microprocessor housed in the body section.

In examples, the microprocessor includes a media player.

In examples, the wearable device includes one or more biometric sensor selected from a heart rate monitor, temperature sensor, movement sensor, microphone, accelerometer, location sensor, GPS, gyroscope, altimeter and acoustic sensor.

In examples, the wearable device includes a voice recognition system.

In examples, the wearable device includes a noise cancellation system.

In examples, the output volume of a signal supplied to the earpiece is adjusted based on the output of one or more biometric sensor.

In examples, a play list is adjusted based on the output of one or more biometric sensor.

In examples, the wearable device includes a water sensor and wherein the media player pauses play when the water detector detects the presence of water.

In examples, the wearable device includes a wireless communication circuit for uploading or streaming content from another device.

In examples, the wireless communication circuit is capable of communicating with a cellular communication system.

In examples, the wearable device is adapted to communicate location and/or biometric data to a cloud based system that analyses biometric and location data and provides coaching tips, directions and other derived information to a user.

In examples, a coating is applied to portions of the body section formed of a thermoplastic elastomer or silicone material.

In examples, the coating has hardness range between Shore A30to Shore A90.

In examples, the coating has hardness range of about Shore A40.