Patent Description:
With the development of science and technology, people's use habits for digital products change and the entertainment culture consumption level is improved, and people are increasingly dependent on the in-ear wireless listening device. To meet various functional requirements of the in-ear wireless listening device, the wireless listening device is correspondingly integrated with a large number of electronic components. However, in the current wireless listening device, most electronic components are centrally arranged in an area of the wireless listening device located outside the acoustic meatus of the user, and the layout is not compact enough. In this case, the outer end of the wireless listening device has a large volume and weight, and the wireless listening device cannot be stably supported at the user's ear, so on the one hand the wireless listening device is prone to fall off the user's ear, and on the other hand, the user's ear is prone to being stressed and painful when the wireless listening device is worn for a long time. Particularly, when the wireless listening device is operated, since the user's finger additionally applies a force onto the wireless listening device, it is easy to cause the wireless listening device to fall or aggravate the compression on the user's ear, which results in pain.

In addition, particularly in an in-ear wireless listening device integrated with a call noise reduction function, a dual-microphone noise reduction algorithm can be adopted for implementation. Here, many electronic components including two microphones need to be arranged in an area of the wireless listening device away from the acoustic meatus of the user. However, according to the principle of the dual-microphone noise reduction algorithm, it is necessary to use one of the two microphones to pick up the noise signals and the other to pick up both the noise signal and the voice signal, and the two microphones disposed separately can receive sounds with different frequencies and intensity distributions, so that the noise can be suppressed or eliminated using the difference in these signals. In this case, if the distance between the two microphones is too small, the frequencies and the intensity distributions of the sounds received by them are highly similar, which will filter or weaken the user's voice, resulting in poor call quality. But if the two microphones are arranged at a large distance, the wireless listening device will have a large volume, particularly at the outer end.

An objective of the present disclosure is to provide a wireless listening device that is compact in structure, small in size, easy to manipulate, and not easy to fall off.

An in-ear wireless listening device is according to the pre-characterising portion of claim <NUM> is known from <CIT>.

An in-ear wireless listening device according to the present invention is characterised by the features recited in the characterising portion of claim <NUM>.

In some embodiments, in the plane where the panel portion is located, the diameter D of the minimum circumscribed circle of the orthographic projections of the charging device, the manipulation device, and the antenna as a whole is in a range of <NUM> to <NUM>.

In some embodiments, the panel portion is substantially circular, elliptical, or polygonal.

In some embodiments, the manipulation device is configured as a touch pad.

In some embodiments, the charging device comprises a charging pin, and the panel portion is configured with a through-hole allowing the charging pin to extend through.

In some embodiments, in a plane perpendicular to the panel portion, an orthographic projection of the touchpad partially overlaps an orthographic projection of the charging pin.

In some embodiments, in the plane where the panel portion is located, a minimum circumscribed circle of the orthographic projection of the charging pin at least partially overlaps the orthographic projection of the touchpad.

In some embodiments, the antenna is arranged at a sidewall of the accommodating groove.

In some embodiments, the antenna is configured as a metal circuit formed on a sidewall of the accommodating groove or configured as a metal sheet extending along the sidewall of the accommodating groove.

In some embodiments, the top cover further comprises at least one lug portion, which is arranged at an outer periphery of the central bumped portion and forms a groove opened toward the interior of the wireless listening device.

In some embodiments, in the plane where the panel portion is located, a maximum distance L between an outer contour of an orthographic projection of the lug portion and a center of the minimum circumscribed circle is in a range of <NUM> to <NUM>.

In some embodiments, the cover plate is further configured with a joint portion, which is connected to an end of the raised portion opposite to the panel portion and at least partially extends toward the housing in a plane parallel to the panel portion.

In some embodiments, in a direction perpendicular to the panel portion, a distance H<NUM> between an outer surface of the panel portion and a connecting portion of the raised portion and the joint portion is <NUM> to <NUM>.

In some embodiments, the housing is configured with a contraction portion, which is formed at an edge of an accommodating cavity of the housing and at least partially extends toward the raised portion in a plane parallel to the panel portion.

In some embodiments, in a direction perpendicular to the panel portion, a distance H<NUM> between an outer surface of the panel portion and a connecting portion of the raised portion and the contraction portion is <NUM> to <NUM>.

In some embodiments, the housing is a housing customized according to an ear of the wearer, wherein an outer contour of the housing is at least partially matched with shapes of an external acoustic meatus and an auricular concha cavity of the wearer.

In some embodiments, the wireless listening device is configured with a ventilation duct for communicating the external acoustic meatus of the wearer with the outside.

In some embodiments, the wireless listening device is a wireless earphone.

In some embodiments, the included angle α is in a range of <NUM>° to <NUM>°.

In some embodiments, a diameter d of the minimum circumscribed circle is <NUM> to <NUM>.

In some embodiments, in the plane where the manipulation device is located, the minimum circumscribed circle of the orthographic projection of the charging pin at least partially overlaps the manipulation device.

In some embodiments, in a plane perpendicular to the manipulation device, a difference between heights of orthographic projections of the first sound pickup hole and the second sound pickup hole in a direction perpendicular to the manipulation device is <NUM> to <NUM>.

In some embodiments, the wireless listening device further comprises a magnet, wherein in the plane perpendicular to the manipulation device, orthographic projections of the first microphone, the second microphone and the magnet at least partially overlap.

In some embodiments, the wireless listening device comprises a mainboard, which comprises a planar section extending substantially parallel to the manipulation device, and the first microphone and the second microphone are both fixed in the planar section.

In some embodiments, the top cover is formed with a protruding portion that comprises: a central bumped portion configured to accommodate the manipulation device and the charging device; a first lug portion configured to accommodate the first microphone; and a second lug portion configured to accommodate the second microphone.

In some embodiments, the wireless listening device further comprises an antenna arranged at an edge of a contour of the central bumped portion.

According to the present disclosure, by constructing the central bumped portion at the top cover of the wireless listening device and optimizing the arrangement of the charging device, the manipulation device, and the antenna in the accommodating groove formed by the central bumped portion, the structure of the wireless listening device is compact, so that the center of gravity of the wireless listening device can be closer to the acoustic meatus and the auricular concha cavity of the user, the support of the wireless listening device on the user's ear is optimized, and the wireless listening device is not easy to fall off and the wearing comfort is improved. Particularly by the design of the central bumped portion, the user can touch the manipulation device more conveniently, manipulate the wireless listening device more accurately, and reduce or even avoid the compression on the ear caused by any improper force application. In addition, the design of the central bumped portion is also beneficial to the antenna of the wireless listening device to transmit and receive signals. By optimizing the relative positions of the two microphones of the wireless listening device and their positions relative to the charging device and the manipulation device, the wireless listening device can have a compact and small structure, particularly at an end away from the acoustic meatus of the user, so that the user's wearing comfort is high and the wireless listening device is not easy to fall off. Meanwhile, the wireless listening device can also have a good call noise reduction function, and the user can well experience a call.

The specific embodiments of the present application are described below regarding the drawings. In the drawings, the same or similar reference numerals are used to denote the same or similar components, and the repeated descriptions thereof are omitted for simplicity.

<FIG> is a perspective view of a wireless listening device according to an embodiment of the present disclosure. In some embodiments, the wireless listening device is configured as a wireless earphone. In some embodiments, the wireless listening device is configured as a True Wireless Stereo (TWS) earphone. <FIG> only schematically shows a single body of the wireless listening device to be worn on a user's left ear. However, those skilled in the art will appreciate that the wireless listening device of this embodiment can include two single bodies used as a pair and worn on the user's left and right ears respectively, and they are substantially symmetrically configured in structure and are not connected to each other by traditional physical wires. Here, to simplify the description, only one single body in the wireless listening device is described with reference to the drawings.

Referring to <FIG>, the wireless listening device according to this embodiment includes a housing <NUM> and a top cover <NUM>.

In some embodiments, the top cover <NUM> and the housing <NUM> are connected to each other in a form-fitting manner such as snap-fit, and/or an interference fit manner, and/or by an adhesive, and/or by a separate connecting member.

In this embodiment, the housing <NUM> can penetrate an outer area of an external acoustic meatus of a wearer and can be supported at an auricular concha cavity. The housing <NUM> is configured with an accommodating cavity <NUM>. Referring to <FIG> and <FIG>, the opening of the accommodating cavity <NUM> is closed by a top cover <NUM>, so that the housing <NUM> and the top cover <NUM> that are connected to each other jointly form an accommodating space for accommodating an acoustic module of the wireless listening device.

In some embodiments, the housing <NUM> can be customized according to the user's ear so that an outer contour of the housing <NUM> is partially matched with shapes of the external acoustic meatus and the auricular concha cavity of the user. In some embodiments, the housing <NUM> can penetrate the outer area of the external acoustic meatus of the wearer and can be supported at the auricular concha cavity and a cymba conchae. Thus, when the user wears the wireless listening device, the top cover <NUM> is located at an end of the wireless listening device away from the external acoustic meatus of the user. In some embodiments, the housing <NUM> is additionally matched with the cymba concha of the user or a part thereof. Thus, the wireless listening device is not easy to fall off and does not cause local compression on the user's ear, thereby improving the wearing comfort. In addition, since the customized housing <NUM> has a high degree of fitting with the external acoustic meatus and the auricular concha cavity of the user, the wireless listening device has a good sound insulation effect, and is not easily interfered by external environmental noise particularly in a scenario where the user is listening attentively, such as enjoying music or talking.

In some embodiments, in which the housing <NUM> is configured as a customized housing, a ventilation duct <NUM> can also be configured at the housing <NUM> to communicates the external acoustic meatus of the user with the outside. One end of the ventilation duct <NUM> of the wireless listening device may be located at an end of the housing <NUM> close to the external acoustic meatus, and the other end of the ventilation duct <NUM> may be formed at an end of the housing <NUM> away from the external acoustic meatus or at the top cover <NUM>. When the user wears the wireless listening device, the air pressure between the acoustic meatus of the user and the outside may be balanced by the ventilation duct <NUM>, thereby reducing or even avoiding the discomfort caused by the increase of the internal pressure of the acoustic meatus. In addition, particularly when the user wears the wireless listening device for a long time, since being in communication with the outside, the acoustic meatus of the user can also be kept dry to avoid bacterial breeding.

In some embodiments, the top cover <NUM> is made of a non-metallic material. In some embodiments, the cap <NUM> includes at least one of an ABS material, a PC material, a PET material, and ceramics. In some embodiments, the top cover <NUM> is made of an ABS material, a PC material, a PC/PET composite, an ABS/PC composite, or ceramics.

Referring to <FIG>, in this embodiment, the top cover <NUM> is configured with a central bumped portion, which includes a panel portion <NUM> and a raised portion <NUM>.

The panel portion <NUM> extends substantially in a planar shape. In some embodiments, the panel portion <NUM> is configured as a plane at an inner surface facing the acoustic module, thereby facilitating the stable operation of a manipulation device described in detail below. In some embodiments, an outer surface of the panel portion <NUM> facing away from the acoustic module, i.e., an outer surface of the wireless listening device, is configured as a plane or with a slight curvature. In some embodiments, the outer surface of the panel portion <NUM> facing away from the acoustic module is configured as being smooth or textured. However, those skilled in the art will appreciate that the design of the outer surface of the panel portion <NUM> facing away from the acoustic module should be based on the premise of not affecting the user's operation on the manipulation device. In some embodiments, the panel portion is substantially circular, elliptical, or polygonal when being viewed in a direction perpendicular thereto, in other words, the panel portion <NUM> can extend substantially in a planar shape to be substantially circular, elliptical or polygonal.

The raised portion <NUM> is connected around an outer periphery of the panel portion <NUM> and at least partially extends toward the housing <NUM> in a direction perpendicular to a plane where the panel portion <NUM> is located. In some embodiments, the raised portion <NUM> can extend toward the housing <NUM> or the external acoustic meatus of the user in a direction perpendicular to an overall extending direction of the panel portion <NUM>. In some embodiments, the raised portion <NUM> can extend toward the housing <NUM> or the external acoustic meatus of the user obliquely to the direction perpendicular to the overall extending direction of the panel portion <NUM>. In some embodiments, in a cross-sectional view of the central bumped portion of the top cover <NUM> taken along a plane perpendicular to the overall extending direction of the panel portion <NUM>, the raised portion <NUM> may extend toward the housing <NUM> or the external acoustic meatus of the user in a straight line, a folded line, and/or an arc.

In this embodiment, the panel portion <NUM> and the raised portion <NUM> form an accommodating groove opened toward an interior of the wireless listening device, and a charging device, a manipulation device, and an antenna (described in detail below) in the acoustic module of the wireless listening device are at least partially accommodated in the accommodating groove.

In some embodiments, referring to <FIG>, the top cover <NUM> is further configured with at least one lug portion <NUM> arranged at an outer periphery of the central bumped portion, wherein the lug portion <NUM> forms a groove opened toward the interior of the wireless listening device. Components in the acoustic module can be at least partially arranged in the groove. In some embodiments, the cap <NUM> is configured with one, two, three, or four lug portions <NUM>. Particularly in a case where the top cover <NUM> is configured with at least two lug portions, the same type or different types of components in the acoustic module can be arranged in the grooves formed by different lug portions respectively. In some embodiments, the lug portions are arranged at the outer periphery of the central bumped portion at a certain interval relative to the central bumped portion, wherein particularly when being viewed from the exterior of the top cover <NUM>, the lug portions <NUM> and the central bumped portion form separate protruding structures at the top cover <NUM>, in which case the sides of the lug portions <NUM> are not continuous with the raised portions <NUM> of the central bumped portion. In some embodiments, for example, referring to <FIG>, the lug portions <NUM> are formed at the outer periphery of the central bumped portion immediately adjacent to the central bumped portion, wherein particularly being viewed from the exterior of the top cover <NUM>, the lug portions <NUM> and the central bumped portion jointly form an integral protruding structure at the top cover <NUM>, where the sides of the lug portions <NUM> are connected to the raised portion <NUM> of the central bumped portion.

In some embodiments, referring to <FIG>, the top cover <NUM> is further configured with a joint portion <NUM>, wherein the joint portion <NUM> is connected to an end of the raised portion <NUM> opposite to the panel portion <NUM> and at least partially extends toward the housing <NUM> in a plane parallel to the panel portion <NUM>. In some embodiments, the joint portion <NUM> is configured as a substantially annular plate-shaped section, which forms a connecting portion from an edge of a protruding structure formed by the central bumped portion and a possibly existing lug portion close to the housing <NUM> to an edge of the opening of the accommodating cavity <NUM> of the housing <NUM>. In some embodiments, the joint portion <NUM> is configured as an annular plate-shaped section parallel to the panel portion <NUM>. In some embodiments, the joint portion <NUM> is configured as an annular plate-shaped section extending in a slightly conical shape. In some embodiments, the joint portion <NUM> is at least partially configured with an undulating structure.

In some embodiments, referring to <FIG>, in a direction perpendicular to the panel portion <NUM>, a distance H<NUM> between the outer surface of the panel portion <NUM> and a connecting portion of the raised portion <NUM> and the joint portion <NUM> is <NUM> to <NUM>, such as <NUM>. In this case, the user's finger can be quickly and accurately positioned to the panel portion <NUM>, which is beneficial to accurately applying a force on the manipulation device, and reducing or avoiding the possibility of improper manipulation, thereby reducing the compression on the user's ear and improving the manipulation sensitivity of the wireless listening device. Further, in the above size range of the distance H<NUM>, it is also possible to design the material thickness of the panel portion according to the conventional material thickness of the top cover, for example, the thickness of the panel portion is in a range of <NUM> to <NUM>, so that an accommodating groove with a reasonable depth can be formed by the central raised portion.

Viewed from the exterior of the wireless listening device, in some embodiments, as shown in <FIG>, the lug portion <NUM> and the central bumped portion have substantially the same height in the direction perpendicular to the panel portion <NUM>. But in some embodiments, the lug portion and the central bumped portion have different heights in the direction perpendicular to the panel portion <NUM>, for example, a height of an end surface of the lug portion is lower than a height of the panel portion <NUM>, i.e., the end surface of the lug portion <NUM> is closer to the housing <NUM> than the panel portion <NUM>.

Viewed from the interior of the wireless listening device, in some embodiments, the accommodating groove formed by the central bumped portion and the accommodating groove formed by the lug portion have different depths. In some embodiments, the central bumped portion forms a deeper accommodating groove or recess than the lug portion. In some embodiments, the accommodating groove formed by the central bumped portion and the accommodating groove formed by the lug portion have the same depth.

In some embodiments, the cap <NUM> can be implemented as an integral member. In some embodiments, various sections of the top cover <NUM>, such as the panel portion <NUM>, the raised portion <NUM>, the possibly existing lug portion <NUM>, and the possibly existing joint portion <NUM>, are integrally formed in a processing step of manufacturing the top cover <NUM>, wherein an outer edge of the joint portion <NUM> can be trimmed by cutting.

Those skilled in the art will appreciate that rounded corners may be provided between adjacent sections among various sections of the top cover <NUM>, such as the panel portion <NUM>, the raised portion <NUM>, the possibly existing lug portion <NUM>, and the possibly existing joint portion <NUM>, so that a smooth transition is achieved between the sections, thereby avoiding local stress concentration.

In this embodiment, referring to <FIG>, the acoustic module of the wireless listening device can be accommodated in the accommodating space jointly formed by the housing <NUM> and the top cover <NUM>. In this embodiment, the acoustic module of the wireless listening device includes a manipulation device <NUM><NUM>, a charging device <NUM>, a battery <NUM>, an antenna <NUM>, sound pickup devices <NUM> and <NUM>, a speaker <NUM>, and a mainboard <NUM> integrated with chips electrically connected to the above components.

In the wireless listening device of this embodiment, components such as the manipulation device <NUM>, the charging device <NUM>, the antenna <NUM>, and the sound pickup devices <NUM> and <NUM> that need to interact or communicate with the outside are integrated on one side of the top cover <NUM> in the accommodating space jointly formed by the housing <NUM> and the top cover <NUM>. In this case, the housing <NUM> of the wireless listening device can be configured as a housing customized according to the user's ear in some embodiments, so that a designer does not need to separately adjust positions of the components such as the manipulation device <NUM>, the charging device <NUM>, the antenna <NUM>, and the sound pickup devices <NUM> and <NUM> for the customized housings of different users, thereby avoiding additional design costs.

In this embodiment, referring particularly to <FIG> and <FIG>, the manipulation device <NUM>, the charging device <NUM>, and the antenna <NUM> of the wireless listening device are at least partially accommodated in an accommodating groove formed by the central bumped portion and opened toward the acoustic module substantially in a direction perpendicular to the panel portion. Here, "at least partially accommodated' particularly means that one or at least two of the manipulating device <NUM>, the charging device <NUM>, and the antenna <NUM> can extend beyond the accommodating groove in the direction perpendicular to the panel portion <NUM>. Here, it can be understood that orthographic projections of the manipulation device <NUM>, the charging device <NUM>, and the antenna <NUM> on the plane where the panel portion <NUM> is located fall within the range of the panel portion <NUM>. In the plane where the panel portion <NUM> is located, for example, in the plane where an inner surface of the panel portion <NUM> facing the acoustic module is located, a diameter D of a minimum circumscribed circle of the orthographic projections of the manipulation device <NUM>, the charging device <NUM> and the antenna <NUM> as a whole is in a range of <NUM> to <NUM>. Here, the minimum circumscribed circle may be understood as a minimum circumscribed circle of an outer contour of a pattern jointly formed by the orthographic projections of the manipulation device <NUM>, the charging device <NUM>, and the antenna <NUM> in the projection plane. In other words, the minimum circumscribed circle refers to a minimum circle that can accommodate the outer contour of the pattern jointly formed by the orthographic projections of the manipulation device <NUM>, the charging device <NUM>, and the antenna <NUM> in the projection plane. Here, when the diameter D of the minimum circumscribed circle is less than or equal to <NUM>, the layout of the manipulation device <NUM>, the charging device <NUM> and the antenna <NUM> at the top cover <NUM> is compact so that the top cover <NUM> with the central bumped portion can be adaptive to the ears of about <NUM>% users, wherein 'adaptive' here particularly means that when the user wears the wireless listening device, the central bumped portion is substantially located in the auricular concha cavity or both the auricular concha cavity and the cymba conchae of the user, so that the support of the wireless listening device at the user's ear is optimized. When the diameter D of the minimum circumscribed circle is greater than or equal to <NUM>, the antenna <NUM> can be arranged on an outermost side of the acoustic module away from the external acoustic meatus under the conditions of providing a reasonable manipulation area of the manipulation device <NUM> and realizing the end-side arrangement of the charging device <NUM>.

In some preferred embodiments, in the plane where the panel portion <NUM> is located, the diameter D of the minimum circumscribed circle of the orthographic projections of the manipulation device <NUM>, the charging device <NUM> and the antenna <NUM> as a whole is in a range of <NUM> to <NUM>. Here, when the diameter D of the minimum circumscribed circle is less than or equal to <NUM>, the layout of the manipulating device <NUM>, the charging device <NUM> and the antenna <NUM> at the top cover <NUM> is compact so that the top cover <NUM> with the central bumped portion can be adaptive to the ears of about <NUM>% users. When the diameter D of the minimum circumscribed circle is greater than or equal to <NUM>, the operation stability can be improved and the antenna <NUM> can be arranged on the outermost side of the acoustic module away from the external acoustic meatus under the conditions of providing a sufficient manipulation area of the manipulation device <NUM> and realizing the end-side arrangement of the charging device <NUM>.

In some more preferred embodiments, in the plane where the panel portion <NUM> is located, the diameter D of the minimum circumscribed circle of the orthographic projections of the manipulation device <NUM>, the charging device <NUM> and the antenna <NUM> as a whole is in a range of <NUM> to <NUM>. Here, when the diameter D of the minimum circumscribed circle is less than or equal to <NUM>, the layout of the manipulating device <NUM>, the charging device <NUM> and the antenna <NUM> at the top cover <NUM> is compact so that the top cover <NUM> with the central bumped portion can be adaptive to the ears of about <NUM>% users. When the diameter D of the minimum circumscribed circle is greater than or equal to <NUM>, the antenna <NUM> can be arranged on the outermost side of the acoustic module away from the external acoustic meatus under the conditions of ensuring a sufficient operation stability of the manipulation device <NUM> and the end-side arrangement of the charging device <NUM>.

In some embodiments, the manipulation device <NUM> is configured as a touchpad, so that compared with a mechanical key switch, it can bring better experiences and sense of technology to the user, and reduce the discomfort caused by pressing the key forcibly. In some embodiments, the touchpad for example may be a device for implementing a touch control by changing a parameter such as a resistance or a capacitance of a touch unit on the touchpad by a human body part such as a finger, and it is different from a mechanical manipulation device such as a mechanical knob or a mechanical switch in that the touchpad usually does not generate a visible mechanical motion to manipulate the touchpad. In addition to the technology of changing the parameter such as the resistance or the capacitance, other touch technologies may also be used in some embodiments, as long as the touchpad can be manipulated from the exterior of the wireless listening device in the presence of the top cover <NUM>, particularly the panel portion <NUM>.

In some embodiments, referring to <FIG> and <FIG>, the charging device is shown as a charging pin <NUM>. In this case, the panel portion <NUM> is configured with a through-hole <NUM> allowing the charging pin to extend through. Thus, the wireless listening device can be charged by an end of the charging pin exposed from the panel portion <NUM>. In some embodiments, referring to <FIG>, the charging pin <NUM> may be configured as a post with a circular cross-section. In some other embodiments, the charging pin may be configured as a post with a non-circular cross-section, wherein the cross-section of the post may be in various shapes such as a straight line segment, an arc segment, a folded line segment, and a curve segment. In some embodiments, referring to <FIG>, the charging pin <NUM> extends in a straight line in its longitudinal direction. In some other embodiments, the charging pin can extend in an arc and/or folded line in its longitudinal direction. In some embodiments, the charging device includes at least one charging pin serving as a positive terminal and at least one charging pin serving as a negative terminal, wherein the charging pins may be identically or differently configured in shape and/or size. In some embodiments, referring to <FIG>, the charging pin <NUM> is supported by a dedicated support member, such as a support plate, wherein the support member is capable of electrically connecting charging pins of the same polarity (e.g., positive or negative), thereby becoming part of a current path during charging. In some embodiments, the charging pin is supported by a mainboard with other functional components, such as the acoustic module, and enables an electrical connection to a charging pin of the same polarity. In some embodiments, the charging pin may be rigidly supported, e.g., fixedly mounted at the support member. In some embodiments, the charging pin may be resiliently supported, e.g., mounted in the form of a spring pin (also known as a POGO PIN) on the support member so that the contact is more stable when the charge pin is in contact with contacts of a charging stand. Here, it should be noted that the support member such as the aforementioned dedicated member, or any other functional member, does not define the shape or size of the orthographic projection of the charging device <NUM> herein. Thus, in an embodiment where the charging device is configured with a charging pin, for the charging device, only the charging pin is considered in the definition of the diameter D of the minimum circumscribed circle schematically shown in <FIG>.

In some embodiments, in the plane perpendicular to the panel portion <NUM>, orthographic projections of the touchpad <NUM> and the charging pin <NUM> partially overlap, thereby achieving a compact layout in a direction perpendicular to the panel portion. In some embodiments, in the plane where the panel portion <NUM> is located, the minimum circumscribed circle of the orthographic projection of the charging pin <NUM> at least partially overlaps the orthographic projection of the touchpad, thereby achieving a compact arrangement in a direction parallel to the panel portion. For example, referring to <FIG>, the touchpad <NUM> is configured with a through-hole, and one or at least two of the charging pins can sequentially extend from the support member thereof through the through-hole of the touchpad <NUM> and the through-hole <NUM> of the panel portion <NUM>. For another example, the touchpad is configured at its edge with a groove recessed toward a center of the touchpad, and one or at least two of the charging pins can sequentially extend from the support member thereof through the groove of the touchpad <NUM> and the through-hole <NUM> of the panel portion <NUM>. In some other embodiments, the touchpad <NUM> is not additionally configured with a hollow structure, such as a through-hole or a groove, which allows the charging pin to pass through, the touchpad <NUM> has a shape such as a circle or an ellipse here, and one or at least two of the charging pins can extend from the support member, pass a lateral side of the touchpad, and then protrude into the through-hole of the panel portion <NUM>.

In some embodiments, referring to <FIG>, the antenna of the wireless listening device is arranged on a sidewall of the accommodating groove formed by the central bumped portion, thereby facilitating improving the capability of the antenna of the wireless listening device to transmit and receive signals. In some embodiments, the antenna is configured as a metal circuit formed on the sidewall of the accommodating groove. The antenna is formed on the sidewall of the accommodating groove for example by plastic hot melting, laser engraving, and the like. In some embodiments, referring to <FIG>, the antenna <NUM> is configured as a metal sheet extending along the sidewall of the accommodating groove. Here, the antenna <NUM> for example is configured as a metal sheet extending in an arc shape. In some embodiments, the metal sheet forming the antenna for example can be supported on the mainboard <NUM> or at the top cover <NUM>.

The wireless listening device further includes a sound pickup device. Referring to <FIG>, the sound pickup device includes two microphones <NUM> and <NUM> arranged at the outer end of the wireless listening device. In some other embodiments, the sound pickup device includes other numbers of microphones arranged at the outer end of the wireless listening device.

In some embodiments, the microphones <NUM>, <NUM> can be at least partially accommodated in the aforementioned groove formed by the lug portion <NUM>. Here, microphone channels <NUM> and <NUM> for communicating sound pickup holes of the microphones with the exterior of the wireless listening device are formed at the top cover <NUM>, particularly at the lug portion <NUM>. In some embodiments, referring to <FIG>, the positions of the microphones <NUM> and <NUM> can be set such that in the plane where the panel portion is located, a maximum distance L between an outer contour of an orthographic projection of the lug portion <NUM> and the center of the minimum circumscribed circle of the orthographic projections of the manipulation device <NUM>, the charging device <NUM> and the antenna <NUM> as a whole is in a range of <NUM> to <NUM>. Therefore, the normal function of the antenna can be ensured under the condition that the components of the acoustic module are compactly arranged at the outer end of the wireless listening device.

The mainboard <NUM> is electrically connected to the manipulation device <NUM>, the charging device <NUM>, the battery <NUM>, the antenna <NUM>, the sound pickup device, and the speaker <NUM>, and the mainboard <NUM> supports one or more of the above components. The electrical connection between the respective components may be implemented using a printed circuit, a lead, a flying wire, a spherical pin, and the like on the mainboard <NUM>. A central processing unit (CPU) of the wireless listening device may be integrated at the mainboard <NUM>. In some embodiments, referring to <FIG>, the mainboard <NUM> is a rigid mainboard. Here, the rigid mainboard for example may be arranged between the manipulation device and the battery. In some embodiments, the mainboard is configured as a folded circuit board or a flexible circuit board.

In this embodiment, referring to <FIG>, the battery <NUM> is arranged in the middle of an inner space of the wireless listening device. In the inner space of the wireless listening device, the speaker <NUM> is arranged close to the external acoustic meatus of the user. The battery and the speaker are not further defined in the present disclosure.

In some embodiments, referring to <FIG>, the wireless listening device further optionally includes a magnet <NUM> to urge the wireless listening device into stable contact with the charging stand when the wireless listening device is charged.

<FIG> show another embodiment, which differs from the aforementioned embodiments in the configurations of the housing <NUM> and the top cover <NUM>, and it will be appreciated that other configurations of the wireless listening device may refer to one or more of the aforementioned embodiments. In the embodiment shown in <FIG>, the housing <NUM> is configured with a contraction portion <NUM> formed at an edge of an accommodating cavity <NUM> of the housing <NUM>. In this case, referring particularly to <FIG>, the top cover <NUM> does not have the joint portion as described in the aforementioned embodiments. When the housing <NUM> is closed by the top cover <NUM>, the contraction portion <NUM> at least partially extends toward the raised portion <NUM> of the top cover <NUM> in the plane parallel to the panel portion <NUM>.

In some embodiments, referring to <FIG>, in the direction perpendicular to the panel portion <NUM>, a distance H<NUM> between the outer surface of the panel portion <NUM> and a connecting portion of the raised portion <NUM> and the contraction portion <NUM> is <NUM> to <NUM>. In this case, the user's finger can be quickly and accurately positioned to the panel portion <NUM>, which is beneficial to accurately applying a force on the manipulation device, and reducing or even avoiding the possibility of improper manipulation, thereby reducing the compression on the user's ear and improving the manipulation sensitivity of the wireless listening device.

In some embodiments, referring to <FIG>, the wireless listening device includes an acoustic module <NUM> for implementing multiple acoustic functions. The acoustic module <NUM> can be accommodated in an accommodating space formed by the housing assembly to be protected and supported.

In some embodiments, referring to <FIG>, the acoustic module <NUM> of the wireless listening device includes a manipulation device <NUM>, a charging device <NUM>, a first microphone <NUM>, a second microphone <NUM>, an antenna <NUM>, a battery (not shown), a speaker <NUM>, and a mainboard <NUM> integrated with chips electrically connected to the above components. In these embodiments, components such as the manipulation device <NUM>, the charging device <NUM>, the first microphone <NUM>, the second microphone <NUM>, and the antenna <NUM>, which need to interact or communicate with the outside (components located on the upper side according to the direction shown in <FIG>), are arranged at an outer end of the wireless listening device, i.e., an end of the wireless listening device away from the acoustic meatus of the user when the user wears the wireless listening device.

In some embodiments, the mainboard <NUM> can support one or at least two of the components in the acoustic module <NUM>. In some embodiments, referring to <FIG>, the mainboard <NUM> is a rigid mainboard. In some embodiments, the mainboard is configured as a folded circuit board or a flexible circuit board. In some embodiments, a central processing unit (CPU) of the wireless listening device is integrated at the mainboard <NUM>. In some embodiments, the mainboard <NUM> is electrically connected to the components in the acoustic module <NUM> by a printed circuit, a lead, a flying wire, a spherical pin, and the like.

The manipulation device <NUM> is substantially in a flat plate shape. In some embodiments, the manipulation device <NUM> has a planar section parallel to the mainboard <NUM>. In some embodiments, referring to <FIG>, the manipulation device <NUM> is configured as a touchpad, so that compared with a mechanical key switch, it can bring better experiences and a sense of technology to the user, and reduce the discomfort caused by pressing the key forcibly. In some embodiments, the touchpad for example may be a device for implementing a touch control by changing a parameter such as a resistance or a capacitance of a touch unit on the touchpad by a human body part such as a finger, and it is different from a mechanical manipulation device such as a mechanical knob or a mechanical switch in that the touchpad usually does not generate a visible mechanical motion to manipulate the touchpad. In addition to the technology of changing the parameter such as the resistance or the capacitance, other touch technologies may also be used in some embodiments, as long as the touchpad can be manipulated from the exterior of the wireless listening device in the presence of the housing assembly, particularly the top cover.

The charging device <NUM> includes a charging pin <NUM>, which can penetrate out of the housing assembly of the wireless listening device, to charge the wireless listening device through an end of the charging pin <NUM> exposed from the outer surface of the housing assembly. In a case where the wireless listening device has a top cover, the end of the charging pin <NUM> exposed from the outer surface of the housing assembly may be higher than, flush with, or slightly lower than an upper surface of the top cover, where the upper surface of the top cover refers to a surface of the top cover facing away from the acoustic module <NUM>. In some embodiments, referring to <FIG>, the charging pin <NUM> may be configured as a post with a circular cross-section. In some other embodiments, the charging pin may be configured as a post with a non-circular cross-section, wherein the cross-section of the post may be in various shapes such as a straight line segment, an arc segment, a folded line segment, and a curved segment. In some embodiments, referring to <FIG>, the charging pin <NUM> extends in a straight line in its longitudinal direction, i.e., a direction perpendicular to the manipulation device <NUM> here. In some other embodiments, the charging pin can extend in an arc and/or folded line in its longitudinal direction. In some embodiments, the charging device includes at least one charging pin serving as a positive terminal and at least one charging pin serving as a negative terminal, wherein the charging pins may be identically or differently configured in shape and/or size. In some embodiments, referring to <FIG>, the charging pin <NUM> is supported by a dedicated support member <NUM>, such as a support plate, wherein the support member <NUM> is capable of electrically connecting charging pins of the same polarity (e.g., positive or negative), thereby becoming part of a current path during charging. In some embodiments, the charging pin is supported by a mainboard with other functional components, such as the acoustic module, and enables an electrical connection to a charging pin of the same polarity. In some embodiments, referring to <FIG>, the charging pin <NUM> may be rigidly supported, e.g., fixedly mounted on the support member <NUM>. In some embodiments, the charging pin may be resiliently supported, e.g., mounted in the form of a spring pin (also known as a POGO PIN) on the support member so that the contact is more stable when the charge pin is in contact with contacts of a charging stand.

In a plane perpendicular to the manipulation device <NUM>, orthographic projections of the manipulation device <NUM> and the charging pin <NUM> partially overlap, thereby achieving a compact layout in a direction perpendicular to the manipulation device <NUM>. In the plane where the manipulation device <NUM> is located, a minimum circumscribed circle of a pattern composed of the orthographic projections of all the charging pins <NUM> at least partially overlaps the manipulation device <NUM>, thereby achieving a compact arrangement in a direction parallel to the manipulation device <NUM>. Here, the minimum circumscribed circle may be understood as a minimum circle that can accommodate the outer contour of the pattern jointly formed by the orthographic projections of all the charging pins <NUM> in the projection plane, i.e., in the plane where the manipulation device <NUM> is located. It should be noted that, since the charging pin has a three-dimensional structure, the minimum circumscribed circle accommodates the complete planar shape of the orthographic projection of each of the charging pins, rather than passing through a center of the planar shape of the orthographic projection of the charging pin. Here, in the plane where the manipulation device <NUM> is located, the minimum circumscribed circle of the orthographic projections of all the charging pins <NUM> can partially or completely overlap the manipulation device <NUM>; the minimum circumscribed circle of the orthographic projections of all the charging pins <NUM> can fall within the range of the manipulation device <NUM>; or the manipulation device <NUM> falls within the range of the minimum circumscribed circle of the orthographic projections of all the charging pins <NUM>.

Here, in some embodiments, referring to <FIG>, the touchpad <NUM> is configured with a through-hole, and one or at least two of the charging pins <NUM> can extend from the support member thereof through the through-hole of the touchpad <NUM>. In some embodiments, the touchpad is configured at its edge with a groove recessed toward a center of the touchpad, and one or at least two of the charging pins can extend from the support member thereof through the groove of the touchpad. In some other embodiments, the touchpad <NUM> is not additionally configured with a hollow structure such as a through-hole or a groove, which allows the charging pin to pass through, the touchpad <NUM> here has a shape such as a circle or an ellipse, and one or at least two of the charging pins can extend from the support member and pass a lateral side of the touchpad.

In some embodiments, referring to <FIG>, the shapes and sizes of the manipulation device and the charging device are designed such that in the plane where the manipulation device <NUM> is located, a diameter d of the minimum circumscribed circle of the outer contour of the orthographic projections of the manipulation device <NUM> and the charging pin <NUM> is <NUM> to <NUM>. In some preferred embodiments, in the plane where the manipulation device <NUM> is located, the diameter d of the minimum circumscribed circle of the outer contour of the orthographic projections of the manipulation device <NUM> and the charging pins <NUM> is <NUM> to <NUM>. Here, the minimum circumscribed circle may be understood as a minimum circumscribed circle of an outer contour of a pattern jointly formed by the outer contour of the manipulation device <NUM> and the orthographic projections of the charging pins <NUM> in the projection plane. In other words, the minimum circumscribed circle refers to a minimum circle that can accommodate the outer contour of the pattern jointly formed by the orthographic projections of the manipulation device <NUM> and all the charging pins <NUM> in the projection plane. With the above designs of the manipulation device and the charging device, the arrangement of the components such as the first microphone <NUM>, the second microphone <NUM>, and the antenna <NUM>, which will be described in detail below, can be provided with an accommodating space under the conditions of providing a sufficient manipulation area for the manipulation device <NUM> and realizing the end-side arrangement of the charging device <NUM>, so that the wireless listening device can have a compact and small structure particularly at an end away from the acoustic meatus of the user, and thus the support of the wireless listening device at the user's ear is optimized, the user's wearing comfort is high, and the wireless listening device is not easy to fall off.

In some embodiments, referring to <FIG>, the first microphone <NUM> and the second microphone <NUM> of the wireless listening device are both fixed at the planar section of the mainboard <NUM>. In some embodiments, referring to <FIG> and <FIG>, the first microphone <NUM> and the second microphone <NUM> are respectively mounted in the acoustic module <NUM> in the form of microphone assemblies. Here, a first microphone assembly includes a first microphone <NUM>, a hood <NUM>, and a mesh <NUM>, and the second microphone assembly includes a first microphone <NUM>, a hood <NUM>, and a mesh <NUM>. In this case, the first microphone <NUM> and the second microphone <NUM> can be protected by the hoods <NUM>. In addition, a sound pickup hole of the first microphone <NUM>, referred to herein as a first sound pickup hole <NUM>, and a sound pickup hole of the second microphone <NUM>, referred to herein as a second sound pickup hole <NUM>, are both covered by the mesh <NUM>. In some embodiments, the first microphone <NUM> and the second microphone <NUM> may be substantially identically configured. In some other embodiments, the first microphone <NUM> and the second microphone <NUM> may also be differently configured.

In some embodiments, in the plane perpendicular to the manipulation device <NUM>, a difference between heights of orthographic projections of the first sound pickup hole <NUM> and the second sound pickup hole <NUM> in the direction perpendicular to the manipulation device <NUM> is <NUM> to <NUM>, for example, <NUM> to <NUM>. Here, the orthographic projection of the first sound pickup hole <NUM> in the plane perpendicular to the manipulation device <NUM> may be understood as an orthographic projection of a geometric center of an entrance plane of the first sound pickup hole <NUM> in the plane perpendicular to the manipulation device <NUM>, wherein the geometric center of the entrance plane of the first sound pickup hole <NUM> is a geometric center of a cross-section of the first sound pickup hole <NUM> in the entrance plane, and the entrance plane is an outer surface of the first microphone <NUM> opened with the first sound pickup hole <NUM>. Here, correspondingly, the orthographic projection of the second sound pickup hole <NUM> in the plane perpendicular to the manipulation device <NUM> may be understood as an orthographic projection of a geometric center of an entrance plane of the second sound pickup hole <NUM> in the plane perpendicular to the manipulation device <NUM>, wherein the geometric center of the entrance plane of the second sound pickup hole <NUM> is a geometric center of a cross-section of the second sound pickup hole <NUM> in the entrance plane, and the entrance plane is an outer surface of the second microphone <NUM> opened with the second sound pickup hole <NUM>. Here, the opening orientations of the first sound pickup hole <NUM> and the second sound pickup hole <NUM> are not limited, wherein the first sound pickup hole <NUM> and the second sound pickup hole <NUM> may be opened toward the same direction or different directions. The layout of the two microphones <NUM> and <NUM> facilitates the compact arrangement of the components in the acoustic module <NUM> on the outer end of the wireless listening device.

Referring to <FIG>, in the plane where the manipulation device <NUM> is located, an outer contour of the orthographic projections of the manipulation device <NUM> and the charging pin <NUM> has a minimum circumscribed circle, and a connecting line X1 between an orthographic projection of the first sound pickup hole <NUM> and a center of the minimum circumscribed circle forms an included angle α in a range of <NUM>° to <NUM>° with a connecting line X2 between an orthographic projection of the second sound pickup hole <NUM> and the center of the minimum circumscribed circle. In other words, in the plane where the manipulation device <NUM> is located, the orthographic projection of the first sound pickup hole <NUM> is connected to the center of the minimum circumscribed circle to form the first connection line X1, the orthographic projection of the second sound pickup hole <NUM> is connected to the center of the minimum circumscribed circle to form the second connection line X2, and the included angle between the first connection line X1 and the second connection line X2 is in a range of <NUM>° to <NUM>°. In some more preferred embodiments, the included angle α is in a range of <NUM>° to <NUM>°. Here, the orthographic projection of the first sound pickup hole <NUM> in the plane where the manipulation device <NUM> is located may be understood as an orthographic projection of a geometric center of an entrance plane of the first sound pickup hole <NUM> in the plane where the manipulation device <NUM> is located, wherein the geometric center of the entrance plane of the first sound pickup hole <NUM> is a geometric center of a cross-section of the first sound pickup hole <NUM> in the entrance plane, and the entrance plane is an outer surface of the first microphone <NUM> opened with the first sound pickup hole <NUM>. Here, correspondingly, the orthographic projection of the second sound pickup hole <NUM> in the plane where the manipulation device <NUM> is located may be understood as an orthographic projection of a geometric center of an entrance plane of the second sound pickup hole <NUM> in the plane where the manipulation device <NUM> is located, wherein the geometric center of the entrance plane of the second sound pickup hole <NUM> is a geometric center of a cross-section of the second sound pickup hole <NUM> in the entrance plane, and the entrance plane is an outer surface of the second microphone <NUM> opened with the second sound pickup hole <NUM>. Here, the opening orientations of the first sound pickup hole <NUM> and the second sound pickup hole <NUM> are not limited, wherein the first sound pickup hole <NUM> and the second sound pickup hole <NUM> may be opened toward the same direction or different directions. With the above designs of the relative positions of the two microphones <NUM> and <NUM> with respect to the charging device <NUM> and the manipulation device <NUM>, the wireless listening device on the one hand can have a compact and small structure at an end thereof away from the acoustic meatus of the user. Particularly in a case where the outer end of the wireless listening device needs to be accommodated in the auricular concha cavity of the user, the wireless listening device with a small structure can be adaptive to ear structures of more users. On the other hand, the wireless listening device designed in this way can provide a sufficient distance between the first microphone <NUM> and the second microphone <NUM>, so that the wireless listening device can have a good call noise reduction function, and the user can well experience a call.

In some embodiments, referring to <FIG>, the antenna <NUM> of the wireless listening device can be arranged on a radial outer side of the minimum circumscribed circle of the outer contour of the orthographic projections of the manipulation device <NUM> and the charging pins <NUM>, thereby facilitating improving the capability of the antenna <NUM> to transmit and receive signals without being interfered by other components in the acoustic module <NUM>. In some embodiments, referring to <FIG>, the antenna <NUM> is configured as a metal sheet extending in an arc shape. In some embodiments, the metal sheet forming the antenna for example can be supported on the mainboard <NUM> or a member constituting the housing assembly, such as the top cover <NUM>. In some embodiments, the antenna is configured as a metal circuit formed at a component in the housing assembly, for example on an inner surface of the top cover <NUM>. Here, the antenna is formed on the inner surface of the housing assembly for example by plastic hot melting, laser engraving, and the like.

In some embodiments, referring to <FIG>, the battery (shielded in <FIG>) of the wireless listening device may be arranged on a side of the mainboard <NUM> facing the external acoustic meatus of the user, so as not to occupy the limited space of the outer end of the wireless listening device.

In some embodiments, referring to <FIG>, the wireless listening device further optionally includes a magnet <NUM> to urge the wireless listening device into stable contact with the charging stand when the wireless listening device is charged. In the plane perpendicular to the manipulation device <NUM>, orthographic projections of the first microphone <NUM>, the second microphone <NUM>, and the magnet <NUM> at least partially overlap, thereby facilitating a compact arrangement of the wireless listening device, particularly at an end thereof away from the acoustic meatus of the user, and ensuring the capability of the antenna <NUM> to transmit and receive signals.

In some embodiments, referring to <FIG>, the speaker <NUM> is arranged close to the external acoustic meatus of the user. The speaker <NUM> for example is a moving iron horn or a moving coil horn, and it is not further limited in the present disclosure.

In some embodiments, a third microphone may be disposed beside a sound hole of the speaker <NUM>, so that the wireless listening device can improve the noise reduction capability of the wireless listening device using the three microphones. In some embodiments, the first microphone <NUM> can serve as a call microphone for picking up a voice signal in a call noise reduction technology such as an Environmental Noise Cancellation (ENC) technology, the second microphone <NUM> can serve as a noise reduction microphone for picking up a voice signal and a noise signal in the call noise reduction technology such as the ENC technology and serve as a feedforward microphone for example in a hybrid Active Noise Cancellation (ANC) technology, and the third microphone can serve as a feedback microphone for example in the hybrid ANC technology, so that the wireless listening device can realize the ENC technology and the ANC technology using the three microphones, and the noise reduction capability of the wireless listening device can be improved as a whole.

In some embodiments, referring to <FIG>, the housing assembly of the wireless listening device includes a housing <NUM>, and a top cover <NUM> that closes an accommodating cavity <NUM> of the housing <NUM> at an end of the wireless listening device. Therefore, the housing <NUM> and the top cover <NUM> connected to each other jointly form an accommodating space for accommodating the acoustic module <NUM> of the wireless listening device. In some embodiments, the top cover <NUM> and the housing <NUM> are connected to each other in a form-fitting manner such as snap-fit, and/or an interference fit manner, and/or by an adhesive, and/or by a separate connecting member.

In some embodiments, the housing <NUM> can be customized according to the user's ear so that an outer contour of the housing <NUM> is partially matched with the shapes of the external acoustic meatus and the auricular concha cavity of the user. In some embodiments, the housing <NUM> can penetrate into the outer area of the external acoustic meatus of the wearer and can be supported at the auricular concha cavity and a cymba conchae. In some embodiments, the housing <NUM> is additionally matched with the cymba concha of the user or a part thereof. Thus, the wireless listening device is not easy to fall off and does not cause local compression on the user's ear, thereby improving the wearing comfort. In addition, since the customized housing <NUM> has a high degree of fitting with the external acoustic meatus and the auricular concha cavity of the user, the wireless listening device has a good sound insulation effect, and is not easily interfered by external environmental noise particularly in a scenario where the user is listening attentively, such as enjoying music or talking, thereby achieving a good passive noise reduction effect. In this case, the wireless listening device has both passive and active noise reduction functions.

In some embodiments, referring to <FIG>, the top cover <NUM> is formed with a protruding portion, which includes a central bumped portion <NUM> and two lug portions <NUM>, i.e., a first lug portion and a second lug portion. Here, an accommodating groove formed by the central bumped portion <NUM> can accommodate the manipulation device <NUM> and the charging device <NUM>; an accommodating cavity formed by the first lug portion can accommodate the first microphone <NUM>, and an accommodating cavity formed by the second lug portion can accommodate the second microphone <NUM>.

It will be appreciated that a through-hole <NUM> allowing the charging pin <NUM> of the charging device <NUM> to extend through is configured at the top cover <NUM>, particularly at the central bumped portion <NUM>, so that the wireless listening device can be charged using the end of the charging pin exposed from the top cover <NUM>. In addition, a microphone channel for communicating the sound pickup hole of the corresponding microphone with the exterior of the wireless listening device is configured at the top cover <NUM>, particularly at the lug portion <NUM>. In some embodiments, the antenna <NUM> of the acoustic module <NUM> is arranged at an edge of a contour of the central bumped portion <NUM>.

Claim 1:
An in-ear wireless listening device, comprising:
a housing (<NUM>, <NUM>), which is placeable at an external auditory canal and an auricular concha cavity of a wearer, and
a top cover (<NUM>, <NUM>), which closes the housing at an end of the in-ear wireless listening device and is configured with a central bumped portion that comprises:
a panel portion (<NUM>, <NUM>), which extends substantially in a planar shape, and
a raised portion (<NUM>, <NUM>), which is connected around an outer periphery of the panel portion (<NUM>, <NUM>) and at least partially extends toward the housing in a direction perpendicular to a plane where the panel portion (<NUM>, <NUM>) is located,
wherein the panel portion (<NUM>, <NUM>) and the raised portion (<NUM>, <NUM>) form an accommodating groove opened toward an interior of the wireless listening device, and a charging device (<NUM>, <NUM>), a manipulation device (<NUM>, <NUM>) and an antenna (<NUM>, <NUM>) of the wireless listening device are at least partially accommodated in the accommodating groove,
wherein in the plane where the panel portion (<NUM>, <NUM>) is located, a diameter D of a minimum circumscribed circle of orthographic projections of the charging device (<NUM>, <NUM>), the manipulation device (<NUM>, <NUM>), and the antenna (<NUM>, <NUM>) as a whole is in a range of <NUM> to <NUM>,
the in-ear wireless listening device being characterised by a first microphone (<NUM>) comprising a first sound pickup hole (<NUM>); and
a second microphone (<NUM>) comprising a second sound pickup hole (<NUM>),
wherein the manipulation device (<NUM>, <NUM>) is substantially in a flat plate shape, and the charging device comprises a charging pin (<NUM>),
wherein in a plane perpendicular to the manipulation device, an orthographic projection of the manipulation device (<NUM>, <NUM>) partially overlaps an orthographic projection of the charging pin (<NUM>),
wherein in a plane where the manipulation device is located, an outer contour of the orthographic projections of the manipulation device (<NUM>, <NUM>) and the charging pin (<NUM>) has a minimum circumscribed circle, and a connecting line (X1) between an orthographic projection of the first sound pickup hole (<NUM>) and a center of the minimum circumscribed circle forms an included angle α in a range of <NUM>° to <NUM>° with a connecting line (X2) between an orthographic projection of the second sound pickup hole (<NUM>) and the center of the minimum circumscribed circle.