Antenna device and ear clip type earphone

Abstract

The antenna device is applied to the earphone, the earphone comprises an earphone shell, the earphone shell comprises a first shell body and a second shell body, the first shell body and the second shell body are matched to form a containing cavity, the containing cavity is used for containing components of the earphone, the first shell body is in a gradually-shrinking shape, the second shell body is in a gradually-shrinking shape, and the first shell body is in a gradually-shrinking shape. The first shell is provided with a large end part and a small end part, the large end part is connected with the second shell, and the small end part is arranged in a bias manner relative to a connecting line of the first shell and the second shell; the antenna device comprises an antenna body, and at least part of the antenna body is attached to the small end part. According to the antenna device and the ear clip type earphone, the occupied space can be reduced, arrangement is easy, meanwhile, the antenna performance can be improved, and the antenna device and the ear clip type earphone are particularly suitable for the ear clip type earphone.

Description

Technical Field

[0001] This invention relates to the technical field of antenna construction, and particularly to an antenna device and an ear clip-on headphone. Background Technology

[0002] Wireless headphones are a new type of headphones that use wireless communication instead of physical wires for communication. They can get rid of the limitations of physical wires and are convenient to use. Correspondingly, wireless headphones need to have an antenna inside to meet communication needs.

[0003] Clip-on headphones are wireless headphones that clip onto the contour of the ear, eliminating the need to insert them into the ear canal and thus reducing discomfort.

[0004] However, clip-on headphones are small in size and have limited internal space, making it difficult to place existing antennas or limiting their performance. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes an antenna device that can reduce space occupation, is easy to arrange, and at the same time improve antenna performance, especially suitable for clip-on headphones.

[0006] The present invention also proposes an ear clip-on headphone having the above-mentioned antenna device.

[0007] According to a first aspect of the present invention, an antenna device is applied to an earphone, the earphone including an earphone shell, the earphone shell including a first housing and a second housing, the first housing and the second housing cooperating to form a receiving cavity for accommodating earphone components, the first housing being tapered, the first housing having a large end and a small end, the large end being connected to the second housing, and the small end being offset relative to the line connecting the first housing and the second housing; the antenna device includes an antenna body, the antenna body being at least partially attached to the small end.

[0008] According to a first aspect of the present invention, the antenna body includes a first antenna portion located at the small end near the second housing.

[0009] According to a first aspect of the antenna device, in a direction perpendicular to the line connecting the large end and the small end, the first antenna portion includes a first patch, a second patch, and a third patch, the first patch and the third patch being arranged in a stepped manner, and the second patch connecting the first patch and the third patch.

[0010] According to a first aspect of the present invention, the antenna body includes a second antenna portion, the second antenna portion being located on the side of the small end facing away from the second housing, and the antenna body further includes a wrapping edge connecting the first antenna portion and the second antenna portion.

[0011] According to an embodiment of the first aspect of the present invention, the antenna device has two wrapping edges, which are arranged in a direction perpendicular to the line connecting the large end and the small end.

[0012] According to a first aspect of the present invention, the antenna body includes a third antenna portion located on the side of the large end facing away from the second housing. The third antenna portion extends along the outer contour of the large end and a section of the third antenna portion is connected to the junction of the second antenna portion and the wrapping edge.

[0013] According to a first aspect of the present invention, the antenna body includes a second antenna portion, the second antenna portion being located on the side of the small end facing away from the second housing, and the second antenna portion extending along the line connecting the large end and the small end.

[0014] According to a first aspect of the present invention, the antenna body includes a third antenna portion located on the side of the large end facing away from the second housing. The third antenna portion extends along the outer contour of the large end, the second antenna portion has a notch, and the third antenna portion is connected to an inner side of the notch.

[0015] According to a first aspect of the antenna device, the antenna body further includes a connecting segment for connecting the third antenna portion, the connecting segment being used to connect a circuit board.

[0016] According to a second aspect of the present invention, the ear clip-on earphone includes an earphone body, a clamping component, and a connecting arm connecting the earphone body and the clamping component, wherein the earphone body is provided with the antenna device described in any one of the above claims.

[0017] The antenna device according to embodiments of the present invention has at least the following beneficial effects: The antenna device of the present invention includes an antenna body, which is at least partially attached to the small end. On the one hand, this reduces the occupancy of the receiving cavity, facilitates the arrangement of other components in the receiving cavity, and reduces the difficulty of arrangement. On the other hand, the antenna body is attached to the surface of the first housing, occupying very little space outside the first housing, avoiding changes to the shape of the earphone or increasing the volume of the earphone, which is conducive to maintaining the miniaturization of the earphone.

[0018] Furthermore, the fact that the antenna body is at least partially attached to the small end also allows a portion of the antenna to be close to the human ear, which helps to form a reference potential with the antenna body and the human body, thereby improving antenna performance.

[0019] Specifically, when an antenna is operating, the conductivity and dielectric properties of the human body, as well as its relative position and contact state with the antenna, affect the electromagnetic field distribution and potential reference environment around the antenna. This invention, through rational design and optimization of the antenna arrangement, establishes a coordinated electromagnetic coupling relationship between the antenna and the human body, thereby establishing a stable potential reference to ensure the normal operation of the antenna, improve the reliability of signal transmission, and optimize the overall system performance.

[0020] Furthermore, the fact that the antenna body is at least partially attached to the small end makes it easy for the antenna body to be a three-dimensional structure that covers the small end, enabling it to radiate or receive electromagnetic waves in multiple directions and dimensions, thus greatly improving antenna performance.

[0021] The present invention also provides an ear clip-on earphone, which has the above-mentioned beneficial effects.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the clip-on earphone according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the internal structure of clip-on headphones; Figure 3 for Figure 1 A schematic diagram of the internal structure of clip-on headphones from another perspective; Figure 4 for Figure 1 Partial assembly diagram of clip-on headphones; Figure 5 for Figure 2 A schematic diagram of the structure of the antenna device; Figure 6 for Figure 2 A schematic diagram of the antenna device from another perspective; Figure 7 Test data for a conventional antenna design in human head mode; Figure 8 This is the test data for this application in the headless mode.

[0025] Reference numerals: Earphone body 100; Clamping component 110; Connecting arm 120; Elastic metal wire 130; Internal wire 140; Circuit board 150; First housing 160; Second housing 170; Large end 180; Small end 190; First antenna section 200; First patch 210; Second patch 220; Third patch 230; Second antenna section 240; Encasing edge 250; Third antenna section 260; Notch 270; Connecting segment 280. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0028] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, this is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] The antenna device and ear clip-on headphones according to embodiments of the present invention are described below with reference to the accompanying drawings.

[0031] The present invention aims to provide an embodiment of an antenna device, which may be part of an earphone. Therefore, the present invention also aims to provide an embodiment of an earphone that includes an antenna device, which can eliminate the need for wire connections, making the earphone a wireless earphone. Wireless earphones include Bluetooth earphones, 2.4G wireless earphones, radio frequency wireless earphones, etc.

[0032] With the development of the electronics industry, smartphones, tablets and other electronic products have been widely used in people's daily lives; Bluetooth headsets, as an important accessory for these electronic products, are becoming increasingly common.

[0033] Traditional in-ear headphones need to be inserted into the ear. Therefore, if worn for a long time, the ear is prone to swelling and discomfort, ear canal inflammation, and may even cause irreversible damage to hearing.

[0034] Reference Figure 1 Open-back headphones (OWS) are a new type of Bluetooth headphones. Because of their open-back design and non-in-ear feature, they can be worn for a long time without hurting the ears. In addition, they can hear outside sounds and are safer to use.

[0035] Among them, clip-on open-back Bluetooth headphones are more popular with consumers because they not only have all the features of open-back headphones, but also have a unique design. When worn on the ear, they look like earrings and serve as a decoration, making them especially popular with young consumers.

[0036] Structurally, the ear clip-on open-back headphones are basically divided into three sections: the headphone body 100, the clamping component 110, and the connecting arm 120. The headphone body 100 is equipped with a speaker, circuit board 150, etc., and the clamping component 110 is equipped with a battery, control buttons, etc.

[0037] The connecting arm 120 connects the headphone body 100 and the clamping component 110. The connecting arm 120 may include an elastic metal wire 130, a rubber sleeve, and an internal wire 140. The elastic metal wire 130 makes the connecting arm 120 elastic, allowing the headphone body 100 and the clamping component 110 to come close to each other to clamp the human ear. The rubber sleeve covers the elastic metal wire 130 and the internal wire 140, improving contact with the human body and protecting the internal wire 140. The internal wire 140 can meet the needs of power supply and headphone control.

[0038] If you want to make the headphones look beautiful, the headphone body 100, the clamping part 110, and the connecting arm 120 all need to be made smaller. This makes the space reserved for the antenna very limited, the distance from the antenna to the reference ground is smaller, the antenna area is smaller, and the antenna performance is difficult to guarantee, which affects the headphone sound quality and the user experience.

[0039] In this regard, the present invention aims to provide an embodiment of an antenna device that, when used in wireless headphones, especially clip-on headphones, can reduce space occupation, is easy to arrange, and at the same time improve antenna performance, thereby meeting the miniaturization requirements of wireless headphones such as clip-on headphones.

[0040] Reference Figure 2 , Figure 3 and Figure 4 For the headphone body 100, the headphone body 100 includes a headphone shell, which includes a first shell 160 and a second shell 170. The first shell 160 and the second shell 170 cooperate to form a receiving cavity for accommodating the headphone components. The first shell 160 is tapered and has a large end 180 and a small end 190. The large end 180 is connected to the second shell 170, and the small end 190 is offset relative to the line connecting the first shell 160 and the second shell 170. The small end 190 is connected to the connecting arm 120.

[0041] For the antenna device, the antenna device includes an antenna body, which is at least partially attached to the small end 190.

[0042] The antenna device of the present invention includes an antenna body, which is at least partially attached to the small end 190. On the one hand, it reduces the occupation of the receiving cavity, facilitates the arrangement of other components in the receiving cavity, and reduces the difficulty of arrangement. On the other hand, the antenna body is attached to the surface of the first housing 160, occupying very little space outside the first housing 160, avoiding changes to the shape of the earphone or increasing the volume of the earphone, which is conducive to maintaining the miniaturization of the earphone.

[0043] Furthermore, the antenna body is at least partially attached to the small end 190, which also brings a part of the antenna close to the human ear, which helps to form a reference potential with the antenna body and the human body, thereby improving the antenna performance.

[0044] Specifically, when an antenna is operating, the conductivity and dielectric properties of the human body, as well as its relative position and contact state with the antenna, affect the electromagnetic field distribution and potential reference environment around the antenna. This invention, through rational design and optimization of the antenna arrangement, establishes a coordinated electromagnetic coupling relationship between the antenna and the human body, thereby establishing a stable potential reference to ensure the normal operation of the antenna, improve the reliability of signal transmission, and optimize the overall system performance.

[0045] Furthermore, the fact that the antenna body is at least partially attached to the small end 190 makes it easy for the antenna body to be a three-dimensional structure covering the small end 190, enabling it to radiate or receive electromagnetic waves in multiple directions and dimensions, thus greatly improving antenna performance.

[0046] In some specific embodiments of the present invention, the antenna body can be attached to the first housing 160 by laser engraving process, thus allowing complex antenna wiring to be arranged on the plastic, reducing the difficulty of production and layout.

[0047] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 In some specific embodiments of the present invention, the antenna body may include a first antenna portion 200, which is located at the small end 190 near the second housing 170.

[0048] It is easy to understand that by setting the first antenna section 200, the first antenna section 200 is located on the side of the small end 190 close to the second housing 170. Therefore, structurally, since the small end 190 is close to the human body, the first antenna section 200 is also closer to the human body. The first antenna section 200 will form an induced potential with the human body. The human body is a huge reference ground, which ultimately leads to a significant improvement in the antenna reference ground of this application. Therefore, the antenna performance can be greatly improved.

[0049] In addition, by setting the first antenna portion 200 so that the first antenna portion 200 is located on the side of the small end 190 close to the second housing 170, the present invention also reduces the occupation of the receiving cavity, making the headphones more miniaturized, especially suitable for clip-on headphones.

[0050] In some specific embodiments of the present invention, in the direction perpendicular to the line connecting the large end 180 and the small end 190, the first antenna portion 200 includes a first patch 210, a second patch 220, and a third patch 230. The first patch 210 and the third patch 230 are arranged in a stepped manner, and the second patch 220 connects the first patch 210 and the third patch 230.

[0051] It is easy to understand that the above shape can increase the area of ​​the first antenna section 200, and at the same time, make the first antenna section 200 have a three-dimensional structure. Moreover, the three-dimensional structure of the first antenna section 200 is compatible with the structure of the ear clip headphones at this time, without changing the connection design of the ear clip headphones.

[0052] In the clip-on earphone, the first housing 160 is connected to a flexible metal strip or memory, and the first housing 160 is provided with a step, the step is provided with a plastic part, the plastic part allows the internal wires 140 to pass through, so as to allow the internal wires 140 to connect to the circuit board 150, etc.

[0053] In some specific embodiments of the present invention, the antenna body may include a second antenna portion 240, which is located on the side of the small end portion 190 facing away from the second housing 170.

[0054] It is easy to understand that, considering human differences, in some people or under certain circumstances, the first antenna part 200 may have a large gap with the human ear, thus affecting the improvement of antenna performance. In this embodiment, by setting a second antenna part 240, the second antenna part 240 forms an induced potential with the elastic metal strip or memory steel wire, and the memory steel wire forms an induced potential with the human ear. As a result, the antenna reference ground is increased, which greatly improves the antenna performance and ensures that the antenna performance can fully meet the needs of use in multiple scenarios or under multiple conditions.

[0055] In some specific embodiments of the present invention, the antenna body may further include a wrapping edge 250 connecting the first antenna portion 200 and the second antenna portion 240.

[0056] It is easy to understand that by making the antenna body include the wrapping edge 250, and by making the first antenna part 200 and the second antenna part 240 tightly wrap the small end 190, the antenna device is not easy to separate from the first housing 160, thus reducing the difficulty of production and assembly.

[0057] In some specific embodiments of the present invention, the number of wrapping edges 250 can be two, and the two wrapping edges 250 are arranged in a direction perpendicular to the line connecting the large end 180 and the small end 190.

[0058] It is easy to understand that by providing two wrapping edges 250, this embodiment also avoids the separation of one side of the antenna body, so that the first antenna part 200 and the second antenna part 240 are raised relative to each other.

[0059] In some specific embodiments of the present invention, the antenna body may include a third antenna portion 260, which is located on the side of the large end portion 180 facing away from the second housing 170, and the third antenna portion 260 extends along the outer contour of the large end portion 180.

[0060] It is easy to understand that by setting the third antenna section 260, this embodiment can make full use of the physical outline of the large end 180 to increase the distribution area and distribution space, without increasing the space occupied by the earphone, so that the earphone can maintain the advantages of compact structure and small space occupation.

[0061] In some specific embodiments of the present invention, a section of the third antenna section 260 may be connected to the junction of the second antenna section 240 and the wrapping edge 250.

[0062] It is easy to understand that in this embodiment, by connecting a section of the third antenna portion 260 to the junction of the second antenna portion 240 and the wrapping edge 250, the third antenna portion 260 is also smoothly extended, reducing bending and laser processing workload, which helps to reduce costs. At the same time, the third antenna portion 260 is not easy to separate from the first housing 160, reducing the impact on production and assembly.

[0063] In some specific embodiments of the present invention, the second antenna portion 240 may be provided to extend along the line connecting the large end portion 180 and the small end portion 190.

[0064] It is easy to understand that since the small end 190 is flat, the side of the small end 190 has a large planar or curved area. In this embodiment, by extending the second antenna portion 240, the area of ​​the second antenna portion 240 can be increased, thereby improving the ability to transmit and receive signals and improving antenna performance.

[0065] In some specific embodiments of the present invention, the third antenna portion 260 may be extended along the outer contour of the large end portion 180, the second antenna portion 240 may have a notch 270, and the third antenna portion 260 may be connected to an inner side of the notch 270.

[0066] It is easy to understand that by setting a notch 270, the third antenna part 260 is connected to an inner side of the notch 270, which satisfies the need to connect the various parts of the antenna together. At the same time, it makes the second antenna part 240 have a cantilever structure, so that the second antenna part 240 can complete the signal transmission and reception work more independently and reduce the influence of the third antenna connection part.

[0067] In some specific embodiments of the present invention, the antenna body may further include a connecting segment 280 for connecting the third antenna section 260, and the connecting segment 280 is used to connect the circuit board 150.

[0068] It is easy to understand that by setting the connecting segment 280, the connecting segment 280 is connected to the third antenna section 260, and the connecting segment 280 is not directly connected to the first antenna section 200 and the second antenna section 240. This reduces the three-dimensional bending of the connecting segment 280 and avoids the connecting end extending to the small end 190, which would increase the manufacturing difficulty.

[0069] In some specific embodiments of the present invention, the first housing 160 may be provided with a socket to facilitate the connection segment 280 to be electrically connected to the circuit board 150 via pins, etc.

[0070] Due to the view relationship, the circuit board 150 is not shown. In this application, the circuit board 150 is referred to as the connecting hole on the connecting segment 280 corresponding to the circuit board 150, which does not affect the understanding of the corresponding circuit board 150.

[0071] Reference Figure 7 This document provides a test report for a conventionally designed antenna. The framed area represents the frequency band commonly used in Bluetooth headsets. Additionally, it references... Figure 8 The test report for the design scheme of this application is provided.

[0072] After comparison Figure 7 and Figure 8 It is known that in head-mounted mode, for the Bluetooth frequency band (2400-2500GHz range), the maximum antenna efficiency of conventional designs is -8.78dB, while the maximum antenna efficiency of this application is -6.08, an increase of 2.7dB in performance. In the industry, a 3dB difference represents a doubling of performance. Therefore, it can be concluded that the antenna design performance of this application is nearly doubled, resulting in excellent antenna performance for the ear-clip headphones, without hindering the design of ear-clip headphones to be further miniaturized.

[0073] In the description of this specification, the references to terms such as "an embodiment, some embodiments, illustrative embodiments, example, specific example, or examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0075] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0076] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0077] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0078] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An antenna device, characterized in that, The device is applied to headphones, which includes a headphone shell, the headphone shell including a first shell (160) and a second shell (170), the first shell (160) and the second shell (170) cooperate to form a receiving cavity for accommodating the headphone components, the first shell (160) is tapered, the first shell (160) has a large end (180) and a small end (190), the large end (180) is connected to the second shell (170), and the small end (190) is offset relative to the line connecting the first shell (160) and the second shell (170); the antenna device includes an antenna body, the antenna body being at least partially attached to the small end (190).

2. The antenna device according to claim 1, characterized in that: The antenna body includes a first antenna section (200), which is located on the side of the small end (190) near the second housing (170).

3. The antenna device according to claim 2, characterized in that: In the direction perpendicular to the line connecting the large end (180) and the small end (190), the first antenna part (200) includes a first patch (210), a second patch (220), and a third patch (230). The first patch (210) and the third patch (230) are arranged in a stepped manner, and the second patch (220) connects the first patch (210) and the third patch (230).

4. The antenna device according to claim 2, characterized in that: The antenna body includes a second antenna portion (240), the second antenna portion (240) is located on the side of the small end (190) facing away from the second housing (170), and the antenna body also includes a wrapping edge (250) connecting the first antenna portion (200) and the second antenna portion (240).

5. The antenna device according to claim 4, characterized in that: The number of wrapping edges (250) is two, and the two wrapping edges (250) are arranged in a direction perpendicular to the line connecting the large end (180) and the small end (190).

6. The antenna device according to claim 4, characterized in that: The antenna body includes a third antenna section (260), which is located on the side of the large end (180) facing away from the second housing (170). The third antenna section (260) extends along the outer contour of the large end (180), and a section of the third antenna section (260) is connected to the junction of the second antenna section (240) and the wrapping edge (250).

7. The antenna device according to claim 1, characterized in that: The antenna body includes a second antenna portion (240), which is located on the side of the small end portion (190) facing away from the second housing (170). The second antenna portion (240) extends along the line connecting the large end portion (180) and the small end portion (190).

8. The antenna device according to claim 7, characterized in that: The antenna body includes a third antenna section (260), which is located on the side of the large end (180) facing away from the second housing (170). The third antenna section (260) extends along the outer contour of the large end (180). The second antenna section (240) has a notch (270), and the third antenna section (260) is connected to an inner side of the notch (270).

9. The antenna device according to claim 8, characterized in that: The antenna body also includes a connecting section (280) for connecting the third antenna section (260), the connecting section (280) being used to connect the circuit board (150).

10. Clip-on earphones, characterized in that: The ear clip-on earphone includes an earphone body (100), a clamping component (110), and a connecting arm (120) connecting the earphone body (100) and the clamping component (110). The earphone body (100) is provided with an antenna device as described in any one of claims 1 to 9.

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