Patent Description:
Earpieces can be employed as earplugs offering protection for the ear, for instance against undesired noises and/or against harmful substances entering the ear such as water and/or dirt. Earpieces can also be applied for hearing devices, in particular for positioning at least a component of the hearing device at a region of the ear. Hearing devices may be used to improve the hearing capability or communication capability of a user, for instance by compensating a hearing loss of a hearing-impaired user, in which case the hearing device is commonly referred to as a hearing instrument such as a hearing aid, or hearing prosthesis. A hearing device may also be used to produce a sound in a user's ear canal. Sound may be communicated by a wire or wirelessly to a hearing device, which may reproduce the sound in the user's ear canal. For example, earpieces such as earbuds, earphones or the like may be used to generate sound in a person's ear canal. Furthermore, hearing devices may be employed as hearing protection devices that suppress or at least substantially attenuate loud sounds and noises that could harm or even damage the user's sense of hearing. Hearing devices are often employed in conjunction with communication devices, such as smartphones, for instance when listening to sound data processed by the communication device and/or during a phone conversation operated by the communication device. More recently, communication devices have been integrated with hearing devices such that the hearing devices at least partially comprise the functionality of those communication devices. Hearing devices include, for instance, earbuds, earphones, and hearing instruments such as behind-the-ear (BTE) hearing aids, receiver-in-the-canal (RIC) hearing aids, in-the-ear (ITE) hearing aids, invisible-in-the-canal (IIC) hearing aids, and completely-in-the-canal (CIC) hearing aids.

Earpieces for hearing devices have long been provided either in an universal size or in a number of sizes from which a user may choose from, or they have been custom-printed in three dimensions or custom-molded and hardened after a curing process. The latter process can account for an improved fit of the earpiece inside the ear und an increased wearing comfort. But this can only be achieved after a rather time-consuming and expensive customization procedure carried out by a health care professional (HCP). In more recent times, earpieces have been proposed that can be customized to an ear shape more easily during direct application of the earpiece at the ear. Typically, those earpieces can be transformed from a first state into a second state after energy has been supplied to the earpiece, wherein the earpiece is deformable in the second state and non-deformable in the first state during application of the earpiece at an ear. Thus, when the earpiece is provided in the second state, an in-situ customization of the earpiece can be carried out on-site directly at an ear of a user. Such an in-situ customization can be carried out by the HCP requiring less effort since the initial preparation of the custom-mold and a possibly required further reworking process of the earpiece can be omitted. More ideally still, the on-site customization would be executed without the need of assistance of an HCP, in particular a person without specific background knowledge such as a salesperson and/or the user of the hearing device himself.

Various in-situ customizable earpieces have been proposed. They have in common that the earpiece consists of a material that changes its state of rigidity from a relatively soft first state, where it easily adapts to a required ear geometry, to a relatively hard second state for a permanent fixation of the pre-formed geometry. The material needs to be prepared in order to switch between the soft and the hard state rather quick and upon a well-defined trigger mechanism. For instance, the trigger mechanism of the material can be provided as light energy, in particular by photons of a particular frequency at a certain intensity, as disclosed in <CIT> and <CIT>. The trigger mechanism of the material can also be provided in the form of thermal energy. In particular, <CIT> discloses an earpiece formed by two silicone materials which harden when mixed after a curing process. Such a curing process can be assisted by thermal energy. patent application publication No. <CIT> discloses an earpiece formed from a bulk thermoplastic material that can be provided in a moldable condition after heating to a transition temperature and hardens after cooling. <CIT> discloses a shape memory material forming the earpiece such that heating the earpiece beyond a transition temperature can evoke a malleable state in which the earpiece is customizable at and ear and subsequent cooling below the transition temperature provides the earpiece in a hardened customized shape. International patent application No. <CIT> discloses an earpiece comprising a core material enclosed by an elastic sleeve, wherein heating the core material above a transition temperature provides the earpiece in a malleable state allowing its in-situ customization and subsequent cooling leads to a hardened state in which the earpiece is ready for use in its customized shape.

Thus, a preparation of the earpiece for evoking the trigger mechanism required for the in-situ customization frequently relies on an energy to be supplied to the earpiece. The process of supplying energy to the earpiece, however, often demands fairly special conditions to be fulfilled such as a specific amount of energy to be supplied to the earpiece for a certain period of time. Ideally, the supplied energy would be homogeneously distributed over the earpiece during the preparation process to ensure a faultless and reproducible customization functionality of the earpiece. But the earpiece can be rather difficult to handle during such a preparation due to its rather small size and/or an unfavorable shape making it hard to get sufficient grip for a preparation manipulation. Those difficulties are enhanced when desirable hygienical preconditions shall be met during the preparation. Hence, despite an enormous facilitation of in-situ customization as compared to the previously known multi-step fabrication methods of an earpiece, an adequate preparation of the earpiece for the in-situ customization may still not represent an unproblematic task, even when carried out by an HCP. Those problems can be aggravated when the in-situ customization and according earpiece preparation is carried out by another person, in particular a salesperson and/or the user of the earpiece himself. Moreover, earpieces are often used while the user is on the move or away from home, for instance at work or during travelling. In consequence, the possibility of a mobile in-situ customization and an according preparation of the earpiece would be desirable. Yet suitable arrangements allowing preparation of the earpiece on the go are not publicly available. In addition, the above described difficulties of handling the earpiece during preparation can be enhanced when encountered away from home.

<CIT> discloses a noise protection ear plug including an elastic component which can be heated to a compressible state and an inelastic component which remains in a substantially rigid state. To transfer the elastic component into the compressible state, the user may dip the ear plug into a hot fluid such as hot or boiling water, or the ear plug may be submerged in a container of water and the water can then be heated.

<CIT> discloses a cleaning device for a hearing aid comprising heating means for heating a reception space of an earpiece, and suction means for removing liquid cerumen after the heating from the earpiece.

It is an object of the present disclosure to avoid at least one of the above mentioned disadvantages and to provide a device for preparing an earpiece for in-situ customization at an ear in a reliable and/or reproducible manner. It is another object to provide a device allowing an earpiece in-situ customization preparation in different and/or changing environments, in particular when traveling or commuting between different places. It is a further object to provide a device facilitating and/or automatizing an earpiece in-situ customization preparation, in particular such that a person without prior knowledge such as a salesperson and/or the user of the earpiece can be enabled to easily perform the preparation. It is another object to provide a device for customization preparation of an earpiece connected to and/or integrated with a hearing device, in particular such that certain functionalities of the hearing device are not compromised during the earpiece preparation. It is yet another object to provide a device for earpiece customization preparation in a rather compact format, in particular allowing rather effortless carrying and/or storing of the device. It is a further object to provide a device for transferring energy to an earpiece in a secure way, in particular such that a user can be kept safe during the energy transfer and/or such that hygienic standards can be met. It is another object to provide a system comprising an earpiece and a device for its customization preparation having at least one of the above mentioned benefits.

At least one of these objects is achieved by a device comprising the features of patent claim <NUM> and/or a system comprising the features of patent claim <NUM>. Advantageous embodiments of the invention are defined by the dependent claims.

Accordingly, the disclosure proposes a device for preparing an earpiece for its customization. The device includes an energy release unit comprising a receiving chamber for receiving the earpiece. The energy release unit is configured to release energy into the receiving chamber. The device further comprises a controller configured to control the energy releasing of the energy release unit. The energy releasing is controlled in such a manner that a predetermined amount of energy can be supplied to the earpiece inside the receiving chamber. The device comprises a casing including a base and a cover, the casing enclosing an inner space between the base and the cover. The cover comprises an opening exposing the receiving chamber such that the earpiece is insertable into the receiving chamber through the opening of the cover.

The energy release unit is provided in the inner space and the device further comprises a deposition area configured to support a hearing device, the deposition area provided on the cover such that the earpiece to be prepared for customization can be connected to the hearing device. The energy release unit is configured to release thermal energy into the receiving chamber, wherein the controller is configured to control the energy release unit to release the energy at a first energy level and subsequently at a second energy level, wherein the first energy level has a larger value than the second energy level and the thermal energy at the first energy level is released at a temperature value above <NUM>° C and the thermal energy at the second energy level is released at a temperature value below <NUM>° C. In this way, predetermined energy release conditions can be provided at the energy release unit controlled by the controller such that an energy supplied to the earpiece in the receiving chamber can be provided in a reproducible and/or optimized and/or user-friendly manner. The device can thus account for a facilitated and/or more precise earpiece customization preparation.

A system for customizing an earpiece according to the disclosure comprises the earpiece and a device for its customization preparation. The earpiece is configured to transform from a first state into a second state after energy has been supplied to the earpiece. The earpiece is deformable in the second state and non-deformable in the first state during application of the earpiece at an ear. The system can provide improved customization of an earpiece to a specific ear geometry, in particular a facilitated and/or more reliable earpiece customization, by enabling an advantageous customization preparation process of the earpiece by means of the customization preparation device.

Aspects regarding some implementations of the device for earpiece customization preparation as further detailed in the subsequent description may be correspondingly applied in some implementations of the earpiece customization system. Aspects regarding some implementations of the earpiece customization system as further detailed in the subsequent description may be correspondingly applied in some implementations of the device for earpiece customization preparation.

The device for preparing an earpiece for its customization comprises a casing. The casing includes a base and a cover. The casing encloses an inner space between the base and the cover. The energy release unit is provided in the inner space. Such a casing can have advantages in many aspects. In particular, the cover can be configured to provide a shielding of the energy release unit from an ambient environment outside the inner space. In this way, the customization preparation can be performed by a user in a more secure way. For instance, the cover can be configured to at least partially isolate the energy produced and/or released from the energy release unit from an ambient environment outside the inner space. In particular, the casing can be configured to be portable by a user. In particular, the casing can be configured to be positioned on a ground plane. In this way, the device can be used quickly and flexibly in various places and/or occasions. The casing can be displaceable on a ground plane, in particular with the base positioned on the ground plane.

The cover comprises an opening exposing the receiving chamber. The cover is configured such that the earpiece is insertable into the receiving chamber through the opening of the cover. This can improve an ease of use of the device by allowing a simple access to the receiving chamber, in particular an easy insertion and/or removal of the earpiece from the receiving chamber. In particular, the opening can be provided at a top wall of the cover. The top wall can be in spaced relation to the base.

The device for preparing an earpiece for its customization comprises a deposition area. The deposition area is configured to support a hearing device. The earpiece to be prepared for customization can be connected to the hearing device. The deposition area can be provided on the cover, in particular at a top wall of the cover. The cover can comprise an indentation comprising the deposition area. This can allow an easy deposition and/or removal of the hearing device from the deposition area, in particular by also providing for an at least slight fixation of the hearing device on the deposition area. In particular, the indentation can be substantially kidney-shaped. Thus, a rather easy access to the hearing device can be provided at the deposition area. In some implementations, the device comprises two deposition areas. The deposition areas can be spaced from one another at the cover. The deposition areas can be each provided in a respective indentation on the cover. in particular at a top wall of the cover. This can allow to deposit two hearing devices simultaneously on the device. The deposition areas can be provided in a symmetrical arrangement on the cover. This can allow an easy access to both hearing devices at the deposition areas, in particular by using two hands simultaneously.

In some implementations, the device for preparing an earpiece for its customization comprises a charging port for a hearing device. The charging port can be configured to provide a connection to a power supply for a hearing device at the deposition area. In particular, the charging port can be provided such that it is connectable to the hearing device at the deposition area. In this way, various functionalities can be provided by the device, in particular to reduce an amount of additional equipment required for the hearing device. In some implementations, the charging port comprises a connector for the hearing device. The connector can be configured to be connected to a power source. In this way, a wired charging of the hearing device can be provided on the deposition area. In some implementations, the charging port is configured for wireless charging. In particular, the charging port can comprise an induction coil. The induction coil can be configured to be connected to a power source. In some implementations, the controller is operationally connected to the charging port. In particular, the controller can also be connectable to a power source.

In some implementations, the device for preparing an earpiece for its customization comprises a data port for a hearing device. The data port can be provided such that it is connectable to the hearing device at the deposition area. In some implementations, the data port comprises a connector for the hearing device. The connector can be configured to be connected to a data interface, in particular a data interface of an external device. In particular, the data port can comprise a bus, for instance a universal serial bus (USB) and/or the like. In some implementations, the data port comprises an antenna configured for wireless communication with the hearing device. In particular, the antenna can be operative to be compliant with a Bluetooth standard and/or the like. In some implementations, the controller is operationally connected to the data port. In particular, the controller can also be configured to provide for data communication with an external device.

In some implementations, the device for preparing an earpiece for its customization comprises a user interface. The user interface can be configured to detect a user interaction. The controller can be operationally connected to the user interface. The user interface can be provided on the cover. The controller can be configured to initiate the controlling of the energy releasing after the user interaction has been detected. In this way, a user-friendly operation of the device can be provided. In some implementations, the user interface is configured to detect a manual impact by a user. In particular, the user interface can comprise a push button and/or a switch. In some implementations, the user interface is configured to detect a voice of a user. For instance, the user interface can be configured to recognize a voice command such as "start preparation" and/or "turn on/off". In this way, an uncomplicated operation of the device can be provided even for a rather inexperienced user. In some implementations, the user interface can comprise a programming interface for the controller. For instance, the controller can be programmable to control the earpiece preparation at a certain daytime.

In some implementations, the device for preparing an earpiece for its customization comprises a detector for identifying a hearing device disposed on the deposition area. The detector can comprise a data port for the hearing device, in particular a data port connectable to the hearing device at the deposition area. The detection of the hearing device can be performed based on determining whether a data connection has been established by the data port, for instance whether a Bluetooth connection has been established with the hearing device. The controller can be configured to control the earpiece preparation depending on a hearing device detected to be disposed on the deposition area. In some implementations, the device for preparing an earpiece for its customization comprises a detector for identifying an earpiece inserted into the receiving chamber and/or an empty receiving chamber. In particular, the detector can comprise an optical sensor configured to monitor the receiving chamber. In particular, the detector can comprise an RFID reader configured to detect an RFID tag. The RFID tag can be provided on the earpiece and/or the hearing device. The controller can be configured to control the earpiece preparation depending on an earpiece inserted into the receiving chamber and/or an empty receiving chamber.

In some implementations, the device for preparing an earpiece for its customization comprises an output interface. The output interface can be configured to output information indicative of at least one parameter related to the energy releasing by the energy release unit. The output interface can be provided on the cover. The controller can be operationally connected to the output interface. The controller can be configured to initiate the outputting. In some implementations, the output interface comprises a light emitting diode (LED). In this way, a readily apparent and easily identifiable recognition of the output information for a user can be provided. In some implementations, the output interface comprises a display. The display can be configured to visualize the output information, in particular in the form of a text and/or numbers. In some implementations, the parameter comprises an indication whether the predetermined amount of energy has been supplied to the earpiece inside the receiving chamber. In some implementations, the controller is configured to initiate outputting of the information by the output interface after determining that an elapsed time during which the energy has been released by the energy release unit has exceeded a predetermined time interval.

In some implementations, the device for preparing an earpiece for its customization comprises an energy detector. The energy detector can be configured to determine a quantity indicative for the energy released by the energy release unit. The energy detector can be operatively connected to the controller. The energy detector can be provided at the energy release unit. The energy detector can comprise a temperature sensor.

In some implementations, the receiving chamber has a substantially cylindrical shape, in particular a circular cylindrical shape. In some implementations, the receiving chamber has a substantially dome-like shape, in particular substantially a shape of a paraboloid. In this way, the receiving chamber can be advantageously adapted to the shape of an earpiece. In some implementations, the energy supply unit comprises a contact wall for contacting the earpiece. The contact wall can at least partially delimit the receiving chamber. The energy release unit can thus be configured to supply the energy to the earpiece at the contact wall. In this way, an efficient and reliable energy transfer can be provided. The device for preparing an earpiece for its customization can further comprise a removable insert. The removable insert can be configured to be inserted into the energy release unit. The contact wall can be provided on the insert. The energy can be released by the energy release unit through the insert. The removable insert can provide a protection of the hearing device, in particular with respect to sanitary aspects.

In some implementations, the receiving chamber is a first receiving chamber for receiving a first earpiece, wherein the energy release unit comprises a second receiving chamber for receiving a second earpiece. In this way, a simultaneous preparation of the two earpieces can be provided. The energy release unit can be configured to release energy into each receiving chamber. In some implementations, the two receiving chambers are substantially identical. In some implementations, the two receiving chambers comprise a different size and/or shape. In this way, the device can be optimized for a preparation of earpieces of different sizes and/or shapes.

In some implementations, the energy release unit is configured such that the predetermined amount of energy is selected such that the earpiece can be transformed from a first state into a second state inside the receiving chamber, wherein the earpiece is non-deformable in the first state and deformable in the second state during application of the earpiece at an ear. In some implementations, the controller is configured to control the energy releasing such that energy at a substantially constant energy level is released into the receiving chamber, at least for a predetermined time interval. The predetermined time interval can be selected to correspond to the predetermined amount of energy to be supplied to the earpiece. The controlling of the substantially constant energy level by the controller can be based on the determining by the energy detector of the quantity indicative for the energy released by the energy release unit. The controller is configured to control the energy release unit to release the energy at a first energy level and subsequently at a second energy level. The first energy level has a larger value than the second energy level. In this way, a more efficient energy supply corresponding to the first energy level can be provided at first. A subsequent reduction of the energy supply corresponding to the second energy level can contribute to a manipulation safety and/or energy savings by still preserving the earpiece in its prepared state. The controller is configured to control the energy release unit to release the energy at the first energy level for a predetermined time interval. In some implementations, the predetermined time interval at the first energy level can account for the predetermined amount of energy to be supplied to the earpiece. In some implementations, the energy is released at the second energy level after the predetermined time interval.

The energy release unit is configured to release thermal energy into the receiving chamber. In particular, the energy release unit can comprise a heating unit. In some implementations, the controller is configured to control the energy release unit to release the thermal energy at a temperature value in a temperature range between <NUM>° C and <NUM>° C, in particular between <NUM>° C and <NUM>° C. Such a temperature range can account for a good preparation of various kinds of customizable earpieces.

The controller is configured to control the heating unit to release the thermal energy at a first temperature and subsequently at a second temperature, wherein the first temperature has a larger value than the second temperature. The thermal energy at the first energy level is released at a temperature value above <NUM>° C, in particular above <NUM>° C. The thermal energy at the second energy level is released at a temperature value below <NUM>° C, in particular below <NUM>° C. In some implementations, the thermal energy at the first energy level and the thermal energy at the second energy level differ by a temperature value of at least <NUM>° C, preferably at least <NUM>° C, and even more preferred at least <NUM>° C.

In some implementations, the system for customizing an earpiece comprises an earpiece having a transition temperature between <NUM>° C and <NUM>° C, in particular between <NUM>° C and <NUM>° C. The earpiece can comprise a thermoplastic polymer and/or a shape memory material.

In the drawings:.

In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the subject matter herein. However, it will be apparent to one of ordinary skill in the art that the subject matter may be practiced without these specific details. In other instances, well known methods, procedures, techniques, components, and systems have not been described in detail so as not to unnecessarily obscure features of the embodiments. In the following description, it should be understood that features of one embodiment may be used in combination with features from another embodiment where the features of the different embodiment are not incompatible. The ensuing description provides some embodiment(s) of the invention, and is not intended to limit the scope, applicability or configuration of the invention or inventions. Various changes may be made in the function and arrangement of elements without departing from the scope of the invention as defined in claim <NUM>.

<FIG> illustrates a hearing device <NUM> connected an earpiece <NUM>. In the illustrated example, hearing device <NUM> is a receiver-in-the-canal (RIC) hearing aid. Earpiece <NUM> comprises a curved wall such that a cavity is surrounded by earpiece <NUM>. Earpiece <NUM> has a dome-like shape. Hearing device <NUM> comprises an acoustic transducer <NUM> mounted to earpiece <NUM>. Acoustic transducer <NUM> extends through a front portion of earpiece <NUM>. Acoustic transducer <NUM> thus comprises a rear portion arranged inside the cavity surrounded by earpiece <NUM> and a front portion outside the cavity. Acoustic transducer <NUM> is a receiver. The receiver is configured to deliver sound into an ear canal when earpiece <NUM> is inserted into the ear canal. Hearing device <NUM> further comprises a housing <NUM> accommodating functional hearing device components. Housing <NUM> can be configured to be worn behind an ear of a user of hearing device <NUM>. Acoustic transducer <NUM> and electrical components of hearing device <NUM> inside housing <NUM> are operatively interconnected. The interconnection is provided by a cable <NUM> between housing <NUM> and acoustic transducer <NUM>. Earpiece <NUM> at least partially comprises a transition material. The transition material allows earpiece <NUM> to transform from a first state into a second state after energy has been supplied to earpiece <NUM>. Earpiece <NUM> is non-deformable in the first state during application of earpiece <NUM> at an ear. Earpiece <NUM> is deformable in the second state during application of the earpiece at an ear. Earpiece <NUM> can subsequently revert its state of rigidity from the second softer state, where it can adapt to the ear geometry, to the harder first state for a permanent fixation of the pre-formed geometry. In this way, earpiece <NUM> can be customized in-situ when applied at an ear. The transition material can be characterized by a transition energy. The first state can correspond to an energy state of the transition material below the transition energy and the second state can correspond to an energy state of the transition material above the transition energy. For instance, earpiece <NUM> can comprise at least one of the transition materials as disclosed in patent application No. <CIT> and/or in <CIT> and/or <CIT>. Earpiece <NUM> may also comprise at least one of the transition materials as disclosed in <CIT> and/or <CIT> and/or <CIT>. In particular, the transition material can be characterized by a transition temperature. The transition material can thus be selected such that earpiece <NUM> is in the first state below the transition temperature, and in the second state above the transition temperature. Below the transition temperature, earpiece <NUM> can thus be substantially non-deformable upon application at an ear, in particular such that earpiece <NUM> is not malleable below the transition temperature. Above the transition temperature, earpiece <NUM> can thus be deformable upon application at an ear, in particular such that earpiece <NUM> is malleable above the transition temperature. In particular, the transition material of earpiece <NUM> may comprise at least one thermoplastic material, in particular a thermoplastic polymer, and/or at least one shape memory material.

<FIG> illustrates a device <NUM> for preparing an earpiece for its customization. Device <NUM> is configured to transfer energy to an earpiece. Device <NUM> comprises an energy release unit <NUM>. Energy release unit <NUM> comprises an energy supply unit <NUM> and an energy release member <NUM>. Energy release member <NUM> surrounds a receiving chamber <NUM> for receiving an earpiece. Receiving chamber <NUM> is delimited by an inner surface <NUM> of energy release member <NUM>. Inner surface <NUM> is curved. Energy release member <NUM> has an open front end <NUM> exposing receiving chamber <NUM>. An earpiece can thus be inserted into receiving chamber <NUM> through the opening at front end <NUM>. A rear end <NUM> of energy release member <NUM> opposing front end <NUM> is closed. Inner surface <NUM> tapers from front end <NUM> to rear end <NUM>. Inner surface <NUM> has a substantially dome-like shape, in particular a substantially parabolic shape.

Energy supply unit <NUM> is operatively connected to energy release member <NUM> such that an energy provided by energy supply unit <NUM> can be delivered to inner surface <NUM>. In this way, the energy provided by energy supply unit <NUM> can be released into receiving chamber <NUM>. The energy can thus be supplied to an earpiece, when the earpiece is inserted into receiving chamber <NUM>. Inner surface <NUM> can form a contact surface for contacting the earpiece, when the earpiece is inserted into receiving chamber <NUM>. In particular, inner surface <NUM> can have a shape substantially corresponding to at least a portion of an outer surface of an earpiece. In this way, the energy can be supplied effectively and homogeneously to the earpiece. Energy supply unit <NUM> is connected to an outer surface of energy release member <NUM>. Energy supply unit <NUM> surrounds receiving chamber <NUM>. Energy supply unit <NUM> comprises a heating element configured to provide thermal energy. Energy release member <NUM> comprises a heat conducting material, in particular a metal and/or a metallic alloy. Energy release member <NUM> thus forms a heat conducting body. In this way, thermal energy can be provided from energy supply unit <NUM> to energy release member <NUM> and released from inner surface <NUM> into receiving chamber <NUM>. During the process, the temperature of energy release member <NUM> increases. The momentary temperature of energy release member <NUM> can thus indicate an amount of energy released into receiving chamber <NUM>, in particular an amount of energy supplied to an earpiece inserted into receiving chamber <NUM>.

Device <NUM> further comprises an energy detector <NUM>. Energy detector <NUM> is configured to determine a quantity indicative for the energy released by energy release unit <NUM>. Energy detector <NUM> is a temperature sensor. Temperature sensor <NUM> is configured to determine the momentary temperature of inner surface <NUM> of energy release member <NUM>. In particular, temperature sensor <NUM> can comprise a temperature probe in contact with energy release member <NUM>.

Device <NUM> further comprises a controller <NUM>. Controller <NUM> is operatively connected to energy release unit <NUM>, in particular to energy supply unit <NUM>. Controller <NUM> is configured to control energy release unit <NUM>. The energy releasing of energy release unit <NUM> can thus be controlled such that a predetermined amount of energy can be delivered to inner surface <NUM> of energy release member <NUM>. In this way, a predetermined amount of energy can be released into receiving chamber <NUM>, in particular supplied to an earpiece inserted into receiving chamber <NUM>. Controller <NUM> is operatively connected to energy detector <NUM>. Controller <NUM> is configured to receive values of the quantity indicative for the energy released by energy release unit <NUM> from energy detector <NUM>. In particular, controller <NUM> can thus receive values of the momentary temperature of inner surface <NUM> of energy release member <NUM>. Based on the received values, controller <NUM> is configured to control energy release unit <NUM> such that a predetermined temperature is provided at inner surface <NUM> of energy release member <NUM>. In particular, controller <NUM> can be configured such that the thermal energy is released into receiving chamber <NUM> at a substantially constant energy level, at least for a predetermined time interval. Controller <NUM> can also be configured such that the thermal energy released into receiving chamber <NUM> is increased and/or decreased in between different energy levels. The momentary energy determined by energy detector <NUM> can thus be adjusted by controller <NUM> to the respective energy level.

Device <NUM> further comprises a user interface <NUM>. User interface <NUM> is configured to detect a user interaction. In particular, user interface <NUM> can comprise a switch and/or a push button. Controller <NUM> is operatively connected to user interface <NUM>. Controller <NUM> is configured to initiate the controlled energy releasing of energy release unit <NUM> after the user interaction has been detected by user interface <NUM>. Device <NUM> further comprises an output interface <NUM>. Output interface <NUM> is configured to output information indicative of at least one parameter related to the energy releasing by energy release unit <NUM>. Controller <NUM> is operatively connected to output interface <NUM>. Controller <NUM> is configured to initiate the outputting of the output information. In particular, the output information can comprise information about a momentary temperature of inner surface <NUM>. The output information can comprise information about a time interval, in particular a predetermined time interval, in which a predetermined temperature value and/or a sequence of a plurality of predetermined temperature values of inner surface <NUM> has been maintained. The output information can comprise an indication whether a predetermined amount of energy, in particular thermal energy, has been released into receiving chamber <NUM> and/or supplied to an earpiece inserted into receiving chamber <NUM>. Controller <NUM> can be configured to initiate outputting of the output information after determining that an elapsed time during which the energy has been released by energy release unit <NUM> has exceeded a predetermined time interval.

Device <NUM> further comprises a casing <NUM>. Casing <NUM> comprises a base <NUM> and a cover <NUM>. Casing <NUM> encloses an inner space <NUM> between base <NUM> and cover <NUM>. Base <NUM> is configured to be positioned on a ground, in particular on a desk and/or a plane. Cover <NUM> comprises a top wall <NUM> and a lateral wall <NUM>. Top wall <NUM> is in spaced relation to base <NUM>. Top wall <NUM> extends substantially in parallel to base <NUM>. Lateral wall <NUM> interconnects base <NUM> and top wall <NUM>. Energy release unit <NUM> is provided in inner space <NUM>. Controller <NUM> is provided in inner space <NUM>. Energy detector <NUM> is provided in inner space <NUM>. User interface <NUM> is provided on cover <NUM>, in particular on top wall <NUM>. Output interface <NUM> is provided on cover <NUM>, in particular on top wall <NUM>. Cover <NUM> comprises an opening. The opening extends through top wall <NUM>. Energy release unit <NUM> is provided at the opening. In particular, front end <NUM> of energy release member <NUM> is mounted to cover <NUM> at the opening. The opening thus exposes receiving chamber <NUM>. An earpiece is insertable into receiving chamber <NUM> through the opening of cover <NUM>. Cover <NUM> is dimensioned such that it is portable by a user. Cover <NUM> is configured to provide a shielding of energy release unit <NUM> from an ambient environment outside inner space <NUM>. In particular, cover <NUM> is configured to at least partially isolate the energy released from energy release unit <NUM> from an ambient environment outside inner space <NUM>. Cover <NUM> can be formed from a plastic material.

<FIG> illustrates a device <NUM> for preparing an earpiece for its customization. Corresponding features with respect to previously described embodiments of device <NUM> are illustrated by the same reference numerals. Energy release unit <NUM> of device <NUM> comprises an energy release member <NUM> corresponding to energy release member <NUM> with the following exceptions. A rear end <NUM> of energy release member <NUM> opposing its front end <NUM> comprises a recess. The recess is provided at inner surface <NUM> of energy release member <NUM>. The recess at rear end <NUM> faces the opening at front end <NUM>. The recess at rear end <NUM> can define an area at which a reduced amount of energy released by energy release member <NUM> can be supplied to an earpiece inserted into receiving chamber.

An earpiece inserted into receiving chamber <NUM> can have a larger distance to inner surface <NUM> at a surface portion of the earpiece provided at the recess as compared to a surface portion of the earpiece provided at inner surface <NUM> at a distance from the recess. Thus, sensitive components of a hearing device integrated with the earpiece, for instance an acoustic transducer, can be provided at the recess. In this way, the sensitive component can be supplied with a smaller amount of energy released by energy release member <NUM> as compared to the remaining earpiece in order to protect the sensitive component. In particular, a portion of the earpiece comprising the sensitive component can be positioned at the recess and/or at least partially protrude into the recess when the earpiece is inserted into receiving chamber <NUM>. The recess extends through energy release member <NUM> from inner surface <NUM> to an outer surface of energy release member <NUM>. The recess thus forms a through-hole of energy release member <NUM> at rear end <NUM>. The through-hole at rear end <NUM> opposes the opening at front end <NUM>. Receiving chamber <NUM> delimited by inner surface <NUM> of energy release member <NUM> thus extends from the opening at front end <NUM> through the through-hole at rear end <NUM>.

<FIG> illustrates a device <NUM> for preparing an earpiece for its customization. Corresponding features with respect to previously described embodiments of devices <NUM>, <NUM> are illustrated by the same reference numerals. An insert <NUM> is arranged at inner surface <NUM> of energy release member <NUM>. Insert <NUM> has a shape substantially matching the shape of inner surface <NUM>. Insert <NUM> has a substantially dome-like shape. An outer surface of insert <NUM> borders inner surface <NUM>. An inner surface <NUM> of insert <NUM> delimits receiving chamber <NUM>. Inner surface <NUM> can thus provide a contact surface for an earpiece inserted into receiving chamber <NUM>. Insert <NUM> is configured such that energy released at inner surface <NUM> of energy release member <NUM> can be transmitted through insert <NUM> to inner surface <NUM> of insert <NUM>. Insert <NUM> can be formed from a heat-conducting material and/or comprise a small thickness allowing heat-conduction through insert <NUM>. Insert <NUM> can be formed, for instance, from a synthetic material and/or metallic material and/or organic material, in particular paper. The energy can thus be released from inner surface <NUM> of insert <NUM> into receiving chamber <NUM>. In this way, the energy can be supplied to an earpiece inserted into receiving chamber <NUM>.

Insert <NUM> can be manually inserted into energy release member <NUM>. Insert <NUM> can be manually removed from energy release member <NUM>. Removable insert <NUM> can thus provide a protective cover for an earpiece inserted into receiving chamber <NUM>. Removable insert <NUM> can thus be used to account for hygiene standards during a customization preparation of the earpiece inside receiving chamber <NUM>. In particular, removable insert <NUM> can be cleaned before the customization preparation of an earpiece inside receiving chamber <NUM>. In particular, a different removable insert <NUM>, for instance a disposable insert <NUM>, can be used for each customization preparation of an earpiece inside receiving chamber <NUM>.

<FIG> illustrates a device <NUM> for preparing an earpiece for its customization. Corresponding features with respect to previously described embodiments of devices <NUM>, <NUM>, <NUM> are illustrated by the same reference numerals. A deposition area <NUM> is provided on cover <NUM>. Deposition area <NUM> is configured to support a hearing device. Deposition area <NUM> is provided in proximity to receiving chamber <NUM> such that an earpiece connected to the hearing device, in particular connected by a cable, can be inserted into receiving chamber <NUM> with the hearing device disposed at deposition area <NUM>. In particular, a distance between deposition area <NUM> and a centre of the opening of cover <NUM> exposing receiving chamber <NUM> can be less than <NUM>, in particular less than <NUM>. Deposition area <NUM> is provided at an indentation <NUM> of cover <NUM>. Indentation <NUM> is a deepened surface portion of top wall <NUM>. Deposition area <NUM> has a smaller spacing relative to base <NUM> as compared to a surface portion of top wall <NUM> remote from deposition area <NUM>. In this way, a rather stable placing of the hearing device on deposition area <NUM> can be provided.

Device <NUM> further comprises a charging port <NUM>. Charging port <NUM> is provided in proximity to deposition area <NUM>. Charging port <NUM> is configured to provide a connection for a hearing device at deposition area <NUM> to a power supply. Charging port <NUM> comprises a connector <NUM>. Connector <NUM> is provided on deposition area <NUM>. In this way, a hearing device can be plugged on connector <NUM> when positioned on deposition area <NUM>. Thus, a power connection for the hearing device can be established via charging port <NUM> allowing a charging of the hearing device. Charging port <NUM> comprises an induction coil <NUM>. Induction coil <NUM> surrounds at least a portion of deposition area <NUM> at which the hearing device can be disposed. Thus, a power connection for the hearing device can also be established via induction coil <NUM> allowing a charging of the hearing device, in particular a wireless charging. In this way, the hearing device can be charged by wired and/or wireless charging on deposition area <NUM>. Controller <NUM> is operatively connected to charging port <NUM>. Controller <NUM> can be configured to control the charging of the hearing device.

Device <NUM> further comprises a data port <NUM>. Data port <NUM> is provided such that it is connectable to the hearing device at the deposition area. Data port <NUM> comprises an antenna for a wireless data connection to a corresponding data port of the hearing device. In particular, the data connection can be configured to comply with a Bluetooth protocol. Data port <NUM> is provided inside inner space <NUM>. Controller <NUM> is operatively connected to data port <NUM>. In this way, controller <NUM> can be configured to control a data exchange with the hearing device at deposition area <NUM>.

Device <NUM> further comprises a power port <NUM>. Power port <NUM> is configured to be connected to a power source. In particular, power port <NUM> can be configured to be connected to a power plug. In particular, power port <NUM> can be configured as a data port. For instance, power port <NUM> can be configured to be connected to an external device such as a computer. In this way, the external device can be configured for a data exchange with a hearing device at deposition area <NUM> via data port <NUM>. Thus, power port <NUM> may be employed for data exchange with an external device and/or power supply from the external device. For instance, power port <NUM> can be a universal serial bus (USB). Controller <NUM> is operatively connected to power port <NUM>. The power supplied via power port <NUM> can thus be distributed through controller <NUM> to at least one of energy detector <NUM>, energy supply unit <NUM>, charging port <NUM>, and data port <NUM>. Controller <NUM> can further be configured to control the power distribution, in particular at least the power distributed to energy supply unit <NUM>. Controller <NUM> can further be configured to control a data exchange, in particular between a hearing device at deposition area <NUM> and/or data port <NUM> and/or an external device connected to power port <NUM> and/or energy detector <NUM>.

<FIG> illustrates a system <NUM> for earpiece customization. Corresponding features with respect to previously described embodiments of hearing device <NUM>, earpiece <NUM>, and customization preparation devices <NUM>, <NUM>, <NUM>, <NUM> are illustrated by the same reference numerals. System <NUM> comprises customization preparation device <NUM>, hearing device <NUM>, and earpiece <NUM>. Hearing device <NUM> is disposed on deposition area <NUM> at cover <NUM>. Hearing device <NUM> is plugged into charging port <NUM>. At the same time, earpiece <NUM> is inserted into receiving chamber <NUM> of energy supply unit <NUM>. In this way, simultaneous customization preparation of earpiece <NUM> and charging of hearing device <NUM> can be provided. Moreover, the multifunctionality of device <NUM> allows to reduce additional equipment needed for maintenance and/or adjustment of hearing device <NUM>. Earpiece <NUM> is provided in receiving chamber <NUM> such that it fits rather closely to contact surface <NUM> of energy release member <NUM>. In this way, an efficient and homogeneous energy supply of the energy released at contact surface <NUM> to earpiece <NUM> can be achieved. Earpiece <NUM> is provided in receiving chamber <NUM> such that acoustic transducer <NUM> is positioned at the recess formed at rear end <NUM> of energy release member <NUM>. In this way, the electric component can be spared from a direct exposure to the energy released at contact surface <NUM> during preparation of the customization of earpiece <NUM>. Controller <NUM> is configured to control energy supply unit <NUM> depending on the thermal energy level of energy release member <NUM> determined by energy detector <NUM> in such a way that a predetermined amount of thermal energy can be released into receiving chamber <NUM>. In this way, a predetermined amount of energy can be supplied to earpiece <NUM> inside receiving chamber <NUM>. After supplying the predetermined amount of energy, earpiece <NUM> can be transformed from the first state, in which earpiece <NUM> is non-deformable during application at an ear, into the second state, in which earpiece <NUM> is deformable during application at an ear. After subsequent removing of earpiece <NUM> from receiving chamber <NUM>, earpiece <NUM> can thus be customized in the second state by application of earpiece <NUM> at an ear.

<FIG> illustrates a device <NUM> for preparing an earpiece for its customization. Device <NUM> comprises a casing <NUM>. Casing <NUM> comprises a base and a cover <NUM>. Casing <NUM> is substantially disc-shaped. In particular, casing <NUM> has a substantially circular-cylindrical shape. A height of the cylinder is smaller than a diameter, in particular a radius, of a circular cross section of the cylinder. Such a shape can account for a rather easy portability of device <NUM>. Two indentations <NUM>, <NUM> are provided in cover <NUM>, in particular at a top wall of cover <NUM>. Indentations <NUM>, <NUM> each define a deposition area <NUM>, <NUM>. Each deposition area <NUM>, <NUM> is configured to support a respective hearing device. Indentations <NUM>, <NUM> are spaced from one another. Indentations <NUM>, <NUM> have a shape allowing a rather comfortable disposal and removal of the respective hearing device. Indentations <NUM>, <NUM> are substantially kidney-shaped. Indentations <NUM>, <NUM> are symmetrically arranged on cover <NUM>. This can allow a rather comfortable handling of both hearing devices, in particular with two hands, during their placement on deposition areas <NUM>, <NUM>.

Cover <NUM> comprises an opening, in particular at the top wall. The opening is provided substantially in between indentations <NUM>, <NUM>. In this way, respective earpieces connected to the hearing devices positioned on deposition area <NUM>, <NUM> can be rather comfortably inserted into the opening. An energy release unit <NUM> is provided in an inner space enclosed by casing <NUM> between its base and cover <NUM>. Energy release unit <NUM> is positioned at the opening of cover <NUM>. A front end <NUM> of energy release unit <NUM> provided at the opening of cover <NUM> comprises two openings. Energy release unit <NUM> comprises two energy release members <NUM>, <NUM>. Energy release members <NUM>, <NUM> lead each to one of the openings at front end <NUM> of energy release unit <NUM>. The respective positions of deposition areas <NUM>, <NUM> relative to energy release members <NUM>, <NUM> can allow an unproblematic insertion of an earpiece connected to a hearing device located on one of deposition areas <NUM>, <NUM> into one respective energy release member <NUM>, <NUM>, and removal therefrom. A user interface <NUM> is provided on cover <NUM>, in particular on the top wall of cover <NUM>. User interface <NUM> comprises a push button. User interface <NUM> is operatively connected to a controller. An output interface <NUM> is provided on cover <NUM>, in particular on the top wall. Output interface <NUM> comprises a first light emitting diode (LED) <NUM> and a second LED <NUM>. Output interface <NUM> is operatively connected to the controller. In some implementations, device <NUM> can comprise any other feature of at least one of devices <NUM>, <NUM>, <NUM>, <NUM> as described above. In some implementations, device <NUM> can be correspondingly applied in a system <NUM> as described above.

After determining a user interaction at user interface <NUM>, the controller is configured to initiate energy releasing of energy release unit <NUM> by both energy release members <NUM>, <NUM>. The controller is configured to control a predetermined amount of energy released by energy release members <NUM>, <NUM>. In this way, a predetermined amount of energy can be supplied to a respective earpiece inserted inside energy release members <NUM>, <NUM>. During the process, the controller is configured to control output interface <NUM> such that first LED <NUM> is emitting light and that second LED <NUM> is not emitting light. After the controller has determined that the predetermined amount of energy has been released by energy release members <NUM>, <NUM>, the controller is configured to control output interface <NUM> such that second LED <NUM> is also emitting light. Output interface <NUM> is thus configured to output information indicative of said energy releasing by energy release unit <NUM>. The output indicates whether a predetermined amount of energy has been supplied to the respective earpiece inside energy release members <NUM>, <NUM>. In particular, the controller can be configured to initiate the outputting after determining that an elapsed time during which the energy has been released by energy release unit <NUM> has exceeded a predetermined time interval. This can indicate to a user that the earpieces are prepared for customization. The earpieces can thus be removed from energy release members <NUM>, <NUM> and can be each applied at an ear for their customization. After determining another user interaction at user interface <NUM>, the controller is configured to stop energy releasing of energy release unit <NUM>. The controller can then be configured to control output interface <NUM> such neither first LED <NUM> nor second LED <NUM> is emitting light.

<FIG> illustrate energy release unit <NUM> of device <NUM> in greater detail. Energy release unit <NUM> has a substantially cylindrical shape. A cross section of the cylinder comprises two opposing rectilinear edges and two opposing curved edges, in particular semi-circular edges. Energy release members <NUM>, <NUM> each comprise an inner wall <NUM>, <NUM>. Inner walls <NUM>, <NUM> each delimit a respective receiving chamber <NUM>, <NUM>. An earpiece is insertable into each receiving chamber <NUM>, <NUM>. In some implementations, receiving chambers <NUM>, <NUM> have a substantially cylindrical shape, in particular a circular cylindrical shape. In some implementations, receiving chambers <NUM>, <NUM> have a substantially dome-like shape. Each of inner walls <NUM>, <NUM> can provide a contact surface for an earpiece inserted into receiving chamber <NUM>, <NUM>.

Energy release members <NUM>, <NUM> are integrated with an energy release body. Energy release body <NUM>, <NUM> comprises a heat conducting material, in particular a metallic material such as a metal and/or a metal alloy. A shape of energy release body <NUM>, <NUM> substantially corresponds to the above described shape of energy release unit <NUM>. Energy release unit <NUM> further comprises an energy supply unit <NUM>. Energy supply unit <NUM> is provided at an outer surface of energy release body <NUM>, <NUM>. Energy supply unit <NUM> surrounds receiving chambers <NUM>, <NUM> provided in energy release members <NUM>, <NUM>. In particular, energy supply unit <NUM> comprises a resistive heating foil. Heating foil <NUM> is wrapped around energy release body <NUM>, <NUM>. Energy supply unit <NUM> is thus configured to provide thermal energy to energy release body <NUM>, <NUM>. Energy release members <NUM>, <NUM> are configured to transmit the thermal energy to their inner wall <NUM>, <NUM>. The thermal energy can thus be released from inner wall <NUM>, <NUM> into receiving chamber <NUM>, <NUM>. An energy detector <NUM> is provided at energy release body <NUM>, <NUM>. Energy release body <NUM>, <NUM> comprises an opening in which energy detector <NUM> is inserted. Energy detector <NUM> is in contact with energy release body <NUM>, <NUM>. Energy detector <NUM> is a temperature sensor configured to determine a momentary temperature of energy release body <NUM>, <NUM>.

<FIG> illustrate functional plots <NUM>, <NUM> of a respective temperature profile <NUM>, <NUM> evolving over time. The time is indicated on an axis of abscissas <NUM>. The temperature is indicated on an axis of ordinates <NUM>. Each of functional plots <NUM>, <NUM> illustrates a method of preparing an earpiece for its customization, in accordance with some embodiments of the present disclosure. Each of functional plots <NUM>, <NUM> further illustrates a method of supplying energy to an earpiece, in accordance with some embodiments of the present disclosure. Controller <NUM> of any of devices <NUM>, <NUM>, <NUM>, <NUM> and/or the controller of device <NUM> can be configured to control at least one of these methods. The temperature, as indicated on axis of ordinates <NUM>, can correspond to an energy value determined by energy detector <NUM>, <NUM>. The temperature, as indicated on axis of ordinates <NUM>, can correspond to an amount of energy released by energy release unit <NUM>, <NUM> and/or an amount of energy supplied to an earpiece inside receiving chamber <NUM>, <NUM>, <NUM>. The temperature, as indicated on axis of ordinates <NUM>, can correspond to a predetermined amount of energy controlled by the controller to be released by energy release unit <NUM>, <NUM> and/or a predetermined amount of energy controlled by the controller to be supplied to an earpiece inside receiving chamber <NUM>, <NUM>, <NUM>. The temperature is illustrated in units of degree Celsius. An energy value corresponding to this temperature may be calculated by converting the temperature in units of Kelvin and multiplying by Boltzmann's constant k. The time, as indicated on axis of abscissas <NUM>, can comprise a time interval during which the controller is configured to control the amount of energy released by energy release unit <NUM>, <NUM> and/or the amount of energy supplied to an earpiece inside receiving chamber <NUM>, <NUM>, <NUM>.

<FIG> illustrates functional plot <NUM> of first temperature profile <NUM>. After inserting an earpiece into receiving chamber <NUM>, <NUM>, <NUM>, the temperature is increased from room temperature to a temperature of <NUM>° during a first time interval <NUM>. The temperature value is above a transition temperature of the earpiece such that the earpiece can transform from a first state, in which the earpiece is non-deformable upon application at an ear, to a second state, in which the earpiece is deformable upon application at an ear. The temperature can be determined by energy detector <NUM>, <NUM>. After the temperature is reached, the temperature is kept at the value of <NUM>° for a second time interval <NUM>. The controller is configured to control the energy releasing of energy release unit <NUM>, <NUM> such that the temperature is kept at this value. Momentary fluctuations of the temperature value are indicated to the controller by energy detector <NUM>, <NUM> such that the controller can control energy supply unit <NUM>, <NUM> in a manner such that the temperature can be substantially kept at this value. Second time interval <NUM> comprises a minimum time determined by the controller to be required to supply the predetermined amount of energy to the earpiece. After the minimum time interval, the controller can be configured to output via output interface <NUM>, <NUM> to a user that the earpiece is readily prepared for its customization at an ear. Second time interval <NUM> can also be longer than this minimum time interval, in particular if the user decides to not yet remove the earpiece from receiving chamber <NUM>, <NUM>, <NUM> in order to customize the earpiece at an ear, such that the earpiece stays readily prepared inside receiving chamber <NUM>, <NUM>, <NUM> in its customizable state. In this way, the earpiece can be provided in the customizable second state until the user is ready to perform the customization. After second time interval <NUM>, the temperature is decreased again to room temperature during a third time interval <NUM>.

<FIG> illustrates functional plot <NUM> of second temperature profile <NUM>. After inserting an earpiece into receiving chamber <NUM>, <NUM>, <NUM>, the temperature is increased from room temperature to <NUM>° during a first time interval <NUM>. After the temperature is reached, as indicated to the controller by energy detector <NUM>, <NUM>, the temperature is kept at the value of <NUM>° for a second time interval <NUM>. The higher temperature value of <NUM>° can provide an increased energy transfer to the earpiece such that a shorter time interval is required to supply a predetermined amount of energy to the earpiece. In this way, the preparation time can be reduced. Moreover, a more effective energy transfer can be provided to the earpiece during the first time interval such that the customizable state of the earpiece can be reached homogeneously and securely. Second time interval <NUM> is a predetermined time interval. A predetermined amount of energy corresponding to the temperature value of <NUM>° can thus be supplied to the earpiece during second time interval <NUM>. After second time interval <NUM>, the controller is configured to decrease the temperature to a value of <NUM>° during a third time interval <NUM>. After the decreased temperature is reached, as indicated to the controller by energy detector <NUM>, <NUM>, the temperature is kept at the value of <NUM>° during a fourth time interval <NUM>. The controller can then be configured to output via output interface <NUM>, <NUM> that the earpiece is readily prepared for its customization at an ear. The lower temperature value of <NUM>° can allow to keep the earpiece in the customizable state in which it has been transferred during second time interval <NUM>. The lower temperature can provide the earpiece in a condition in which it is more safe and/or convenient to handle during removal from receiving chamber <NUM>, <NUM>, <NUM>. In addition, the earpiece can also be more securely applied at an ear for its customization at the lower temperature. The earpiece can be provided in the customizable second state during fourth time interval <NUM> until the user is ready to perform the customization, in particular to remove the earpiece from receiving chamber <NUM>, <NUM>, <NUM>. After fourth time interval <NUM>, the temperature is decreased again to room temperature in a fifth time interval <NUM>.

Claim 1:
A device for preparing an earpiece for its customization, the device including an energy release unit (<NUM>, <NUM>) comprising a receiving chamber (<NUM>, <NUM>, <NUM>) for receiving the earpiece and configured to release energy into the receiving chamber (<NUM>, <NUM>, <NUM>), a controller (<NUM>) configured to control said energy releasing of the energy release unit (<NUM>, <NUM>) such that a predetermined amount of energy can be supplied to the earpiece inside the receiving chamber (<NUM>, <NUM>, <NUM>), and a casing (<NUM>, <NUM>) including a base (<NUM>) and a cover (<NUM>, <NUM>), the casing (<NUM>, <NUM>) enclosing an inner space (<NUM>) between the base (<NUM>) and the cover (<NUM>, <NUM>), the cover (<NUM>, <NUM>) comprising an opening exposing the receiving chamber (<NUM>, <NUM>, <NUM>) such that the earpiece is insertable into the receiving chamber (<NUM>, <NUM>, <NUM>) through the opening of the cover (<NUM>, <NUM>), wherein the energy release unit (<NUM>, <NUM>) is provided in the inner space (<NUM>) and the device further comprises a deposition area (<NUM>, <NUM>, <NUM>) configured to support a hearing device, the deposition area (<NUM>, <NUM>, <NUM>) provided on the cover (<NUM>, <NUM>) such that the earpiece to be prepared for customization can be connected to the hearing device, wherein the energy release unit (<NUM>, <NUM>) is configured to release thermal energy into the receiving chamber (<NUM>, <NUM>, <NUM>), characterized in that the controller (<NUM>) is configured to control the energy release unit (<NUM>, <NUM>) to release the energy at a first energy level <NUM>, during a time interval (<NUM>), and subsequently at a second energy level, during another time interval (<NUM>), wherein the first energy level has a larger value than the second energy level and the thermal energy at the first energy level is released at a temperature value above <NUM>° C and the thermal energy at the second energy level is released at a temperature value below <NUM>° C.