A Bluetooth earphone

Abstract

The utility model relates to a kind of bluetooth headset, including earphone body and decoration piece, earphone body sets up first concave-convex cooperation structure and first magnetic piece, first magnetic piece is set in earphone body in the position corresponding to first concave-convex cooperation structure, decoration piece sets up second concave-convex cooperation structure and second magnetic piece, second magnetic piece is set in decoration piece in the position corresponding to second concave-convex cooperation structure, second concave-convex cooperation structure is adapted with first concave-convex cooperation structure, first concave-convex cooperation structure and second concave-convex cooperation structure mutually inlay, and first magnetic piece and second magnetic piece mutually adsorb, to with decoration piece can be detachably set in earphone body. Concave-convex cooperation and magnetic attraction connection between earphone body and decoration piece in the above-mentioned bluetooth headset, both can guarantee the firm connection of earphone body and decoration piece, and also can realize the convenient replacement of decoration piece, so that user is conveniently replaced decoration piece under the condition of not damaging earphone body, to satisfy the diverse individualized needs of user.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment technology, and in particular to a Bluetooth headset. Background Technology

[0002] As consumers increasingly value personalization and fashion, the aesthetic appeal of Bluetooth headphones, a frequently used electronic device, is receiving more and more attention. Users expect to change their headphone accessories according to different scenarios and preferences to express their individuality.

[0003] Existing headphone accessories are mainly secured in three ways: one-piece molding, adhesive bonding, and snap-on fastening. One-piece molding involves molding the accessory to the headphone shell as a single piece. This method makes the accessory non-replaceable and fails to meet diverse user needs. Adhesive bonding involves gluing the accessory to the headphone shell, making it difficult to remove and replace. If the accessory is damaged or the user wants to change the style, the entire accessory must be removed, potentially damaging the headphone surface and being cumbersome. Snap-on fastening connects the accessory to the headphone shell with clips, but the clip structure is susceptible to loosening under external force, lacks stability, and may wear down over time, leading to connection failure. In summary, existing headphone accessory fastening methods have many limitations, making convenient replacement difficult and failing to meet diverse user needs. Utility Model Content

[0004] The purpose of this utility model is to provide a Bluetooth headset that allows for easy replacement of decorative parts, thus meeting the diverse personalized needs of users.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] In a first aspect of this application, a Bluetooth headset is provided, comprising:

[0007] The earphone body is provided with a first concave-convex mating structure and a first magnetic element, wherein the first magnetic element is disposed on the earphone body at a position corresponding to the first concave-convex mating structure.

[0008] The decorative component includes a second concave-convex fitting structure and a second magnetic component. The second magnetic component is positioned on the decorative component corresponding to the position of the second concave-convex fitting structure. The second concave-convex fitting structure is adapted to the first concave-convex fitting structure. The first concave-convex fitting structure and the second concave-convex fitting structure are interlocked with each other, and the first magnetic component and the second magnetic component are attracted to each other, so as to detachably attach the decorative component to the headphone body.

[0009] In one possible implementation, the first concave-convex mating structure is a conformal groove provided on the headphone body, and the second concave-convex mating structure is a conformal protrusion provided on the decorative part.

[0010] In one possible implementation, the second magnetic element and the conformal protrusion are an integral structure.

[0011] In one possible implementation, the second magnetic element is a ferromagnetic element, and the first magnetic element is a permanent magnet.

[0012] In one possible implementation, the circumferential groove wall of the conformal groove is inclined from the bottom of the groove to the opening, so that the conformal groove forms an flared groove, and the circumferential sidewall of the conformal protrusion is adapted to the shape of the circumferential groove wall of the conformal groove.

[0013] In one possible implementation, the first magnetic component includes a plurality of first permanent magnets, and the magnetic polarity of at least one of the first permanent magnets facing the decorative component is opposite to that of the other first permanent magnets facing the decorative component. The second magnetic component includes a plurality of second permanent magnets arranged in a one-to-one correspondence with the first permanent magnets, and the magnetic polarity of the second permanent magnets facing the headphone body is opposite to that of the first permanent magnets at the corresponding positions facing the decorative component.

[0014] In one possible implementation, one of the first concave-convex fitting structure and the second concave-convex fitting structure includes two limiting grooves with opposite orientations and staggered arrangement, and the other of the first concave-convex fitting structure and the second concave-convex fitting structure includes two limiting protrusions that correspond one-to-one with the limiting grooves. The decorative piece and the earphone body rotate relative to each other by a preset angle from the relative positions of the two limiting protrusions located at the openings of the limiting grooves, until the two limiting protrusions are respectively engaged in the two limiting grooves.

[0015] In one possible implementation, the two limiting grooves are two arc-shaped grooves with the same center.

[0016] In one possible implementation, the limiting groove is a T-shaped groove, and the limiting protrusion is a T-shaped protrusion adapted to the T-shaped groove.

[0017] In one possible implementation, the width of the limiting groove gradually decreases along the direction from the groove opening to the bottom of the groove.

[0018] As can be seen from the above technical solution, this utility model discloses a Bluetooth headset, which includes a headset body and a decorative component. The headset body is provided with a first concave-convex mating structure and a first magnetic component. The first magnetic component is disposed on the headset body at a position corresponding to the first concave-convex mating structure. The decorative component is provided with a second concave-convex mating structure and a second magnetic component. The second magnetic component is disposed on the decorative component at a position corresponding to the second concave-convex mating structure. The second concave-convex mating structure is adapted to the first concave-convex mating structure. The first concave-convex mating structure and the second concave-convex mating structure are interlocked with each other, and the first magnetic component and the second magnetic component are attracted to each other, so that the decorative component can be detachably disposed on the headset body.

[0019] The earphone body and decorative parts in the aforementioned Bluetooth earphones are connected by a concave-convex fit and magnetic attraction. This not only ensures a stable connection between the earphone body and the decorative parts, but also allows for easy replacement of the decorative parts. Users can easily replace the decorative parts without damaging the earphone body, thus meeting diverse personalized needs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a Bluetooth headset provided in one embodiment of the present invention;

[0022] Figure 2 A split view of the decorative component of a Bluetooth headset provided in one embodiment of this utility model;

[0023] Figure 3 A schematic diagram of the structure of the earphone body of a Bluetooth earphone provided in another embodiment of the present utility model;

[0024] Figure 4 A cross-sectional schematic diagram of the snap-fit ​​groove of the earphone body of a Bluetooth earphone provided in another embodiment of the present utility model;

[0025] Figure 5 A partial structural schematic diagram of the earphone body of a Bluetooth earphone provided in another embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the first and second concave-convex mating structures of a Bluetooth headset provided in another embodiment of the present invention.

[0027] In the picture:

[0028] 100 is the headphone body; 110 is the conformal groove; 111 is the bottom of the conformal groove; 112 is the circumferential wall of the conformal groove; 120 is the snap-fit ​​groove; 130 is the limiting groove;

[0029] 200 is a decorative part; 210 is the body of the decorative part; 220 is a conformal protrusion; 221 is a positioning protrusion; 230 is a limiting protrusion. Detailed Implementation

[0030] The core of this utility model is to provide a Bluetooth headset whose structural design allows for easy replacement of decorative parts, thus meeting diverse personalized needs of users.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This application provides a Bluetooth headset, which includes, but is not limited to, in-ear, semi-in-ear, clip-on, and over-ear headsets. Please refer to [link / reference]. Figure 1 and Figure 2 In the illustrated embodiment, the Bluetooth headset is a clip-on headset. Of course, it is not limited to clip-on headsets and can also be other types of headsets mentioned above, which are not limited here.

[0033] The Bluetooth headset includes the headset body 100 and decorative parts 200.

[0034] The earphone body 100 contains a sound module, a circuit board, a power management chip, and a rechargeable micro battery. The sound module in Bluetooth earphones is usually a dynamic unit, which consists of a diaphragm, a voice coil, and a permanent magnet. It works based on the principle of electromagnetic induction. When an audio signal is transmitted to the voice coil, the voice coil generates a changing current, which is subjected to force in the magnetic field of the permanent magnet, causing the diaphragm to vibrate, pushing the air to generate sound waves and reproduce sound.

[0035] The circuit board integrates a variety of key functional modules, including but not limited to a Bluetooth chip, an audio codec, and a microphone circuit. The Bluetooth chip is responsible for wirelessly connecting to the device, receiving and decoding audio data. The audio codec converts digital audio signals into analog signals and performs noise reduction and sound effect optimization. The microphone circuit is responsible for voice acquisition and filters ambient noise through noise reduction algorithms to ensure clear calls.

[0036] The power management chip monitors the status of the rechargeable micro battery in real time, controls the charging and discharging process, and has overcharge, over-discharge, and over-temperature protection functions to extend battery life.

[0037] The aforementioned sound-generating module, circuit board, power management chip, and rechargeable micro battery are all housed within the cavity enclosed by the outer shell of the earphone body 100.

[0038] The earphone body 100 is provided with a first concave-convex mating structure and a first magnetic component. The first concave-convex mating structure is provided on the outer surface of the earphone body 100 shell. The first magnetic component can be a permanent magnet or a ferromagnetic component that can be attracted by a permanent magnet. Ferromagnetic components refer to metal components made of metals such as iron, nickel, and cobalt that can be attracted by a permanent magnet. The first magnetic component is provided on the earphone body 100 at the position corresponding to the first concave-convex mating structure.

[0039] The main function of the decorative component 200 is for aesthetic decoration and does not affect the function of the Bluetooth headset. It has decorative graphics and includes a decorative component body 210, a second concave-convex fitting structure and a second magnetic component disposed on the decorative component body 210. The second concave-convex fitting structure is disposed on the non-decorative surface of the decorative component body 210, that is, on the side of the decorative component body 210 away from the decorative graphics. The second magnetic component is disposed on the decorative component body 210 or the second concave-convex fitting structure corresponding to the position of the second concave-convex fitting structure. The second magnetic component can be a permanent magnet or a ferromagnetic component that can be attracted by a permanent magnet. Ferromagnetic components refer to metal components made of metals such as iron, nickel, and cobalt that can be attracted by a permanent magnet. Of course, both the first and second magnetic components can be permanent magnets, and when they are set, the magnetic poles of the opposite ends of the first and second magnetic components are opposite, or one of the first and second magnetic components is a permanent magnet and the other is a ferromagnetic component.

[0040] The second concave-convex mating structure is adapted to the first concave-convex mating structure, that is, one of the first concave-convex mating structure and the second concave-convex mating structure is a groove structure and the other is a protrusion structure, or the first concave-convex mating structure includes at least one groove structure and at least one protrusion structure, and correspondingly, the second concave-convex mating structure includes at least one protrusion structure and at least one groove structure. The number and position of the protrusion structure of the second concave-convex mating structure correspond one-to-one with the number and position of the groove structure of the first concave-convex mating structure, and the number and position of the groove structure of the second concave-convex mating structure correspond one-to-one with the number and position of the protrusion structure of the first concave-convex mating structure.

[0041] When the decorative piece 200 is assembled to the headphone body 100, the first concave-convex fitting structure and the second concave-convex fitting structure fit together. This not only indicates the installation position of the decorative piece 200, but also limits the position of the decorative piece 200, improving the stability of the fit between the decorative piece 200 and the headphone body 100. At the same time as the first concave-convex fitting structure and the second concave-convex fitting structure fit together, the first magnetic component and the second magnetic component attract each other, so that the decorative piece 200 can be detachably set on the headphone body 100.

[0042] Therefore, it can be seen that the Bluetooth headset body 100 and the decorative part 200 in the embodiments of this application adopt a concave-convex fit and magnetic connection, which can not only ensure the stable connection between the headset body 100 and the decorative part 200, but also realize the convenient replacement of the decorative part 200. This allows users to easily replace the decorative part 200 without damaging the headset body 100, so as to meet the diverse personalized needs of users.

[0043] Please see Figure 1 and Figure 2 In one embodiment of this application, the first concave-convex mating structure is a conformal groove 110 disposed on the headphone body 100. One or more conformal grooves 110 may be disposed. The conformal grooves 110 are disposed along the outer contour of the headphone body 100, which can avoid forming a protruding structure on the headphone body 100. The number, length and width of the conformal grooves 110 are determined according to the surface shape and size of the headphone body 100. The second concave-convex mating structure is a conformal protrusion 220 disposed on the decorative part 200. The number of conformal protrusions 220 is the same as the number of conformal grooves 110 and they correspond one-to-one.

[0044] It is foreseeable that, since the volume of the headphone body 100 is usually small, the depth of the conformal groove 110 is usually shallow. The circumferential groove wall 112 of the conformal groove 110 has a small dimension in the depth direction of the conformal groove 110, making it difficult to set the first magnetic element here. Therefore, in this embodiment, the first magnetic element is set at the position corresponding to the bottom 111 of the conformal groove 110. The first magnetic element can fill the bottom 111 of the conformal groove 110, or multiple first magnetic elements can be set at intervals along the bottom 111 of the conformal groove 110. No limitation is made here.

[0045] In the above embodiments, the second magnetic element and the conformal protrusion 220 are integrally formed, that is, the conformal protrusion 220 can be formed on the decorative element 200 by the second magnetic element, or the second magnetic element can be embedded in the conformal protrusion 220. In this application, the conformal protrusion 220 is formed on the decorative element 200 by the second magnetic element.

[0046] To reduce the cost of the decorative component 200, in one embodiment of this application, the second magnetic component is a ferromagnetic component, that is, a powder metallurgy magnetic sheet. The second magnetic component is connected to the decorative component body 210 by welding. Correspondingly, the first magnetic component is a permanent magnet.

[0047] It is foreseeable that, due to the small size of Bluetooth earphones and their need to be placed in a charging case for charging, the accuracy of the position of the decorative component 200 relative to the earphone body 100 directly affects whether the decorative component 200 can be installed on the earphone body 100, and also whether the earphone body 100 with the decorative component 200 installed can be placed in the charging case. The accuracy of the relative position between the second magnetic component and the decorative component body 210 during the welding process directly affects the accuracy of the position of the decorative component 200 relative to the earphone body 100. Therefore, to facilitate the accurate connection between the second magnetic component and the decorative component body 210, such as... Figure 2 As shown, the second magnetic component is provided with multiple positioning protrusions 221. Correspondingly, the decorative component body 210 is provided with positioning slots that are adapted to the multiple positioning protrusions 221. The positioning slots can be integrated with the decorative pattern of the decorative component body 210, that is, the positioning slots are formed by the corners of the decorative pattern. When welding the second magnetic component to the decorative component body 210, the positioning protrusions 221 and the positioning slots can be used to position the second magnetic component and the decorative component body 210, ensuring that the two do not misalign during the welding process and ensuring the accuracy of the relative position of the second magnetic component and the decorative component body 210.

[0048] Further optimize the above technical solutions, such as Figure 1 and Figure 2 As shown, the circumferential groove wall 112 of the conformal groove 110 is inclined from the bottom 111 of the conformal groove 110 to the groove opening, so that the conformal groove 110 forms a flared groove. The circumferential sidewall of the conformal protrusion 220 is adapted to the shape of the circumferential groove wall 112 of the conformal groove 110. When the conformal protrusion 220 and the conformal groove 110 are engaged, this flared groove can play a guiding role, which facilitates the engagement of the conformal protrusion 220 and the conformal groove 110, and at the same time, it can make the engagement of the conformal protrusion 220 and the conformal groove 110 more tight.

[0049] To guide users in correctly installing the decorative element 200, in one embodiment of this application, the first magnetic element includes a plurality of first permanent magnets, and the magnetic polarity of at least one first permanent magnet facing the decorative element 200 is opposite to that of the other first permanent magnets facing the decorative element 200. Furthermore, the first permanent magnets are arranged at unequal intervals or asymmetrically. The second magnetic element includes a plurality of second permanent magnets that correspond one-to-one with the first permanent magnets. The magnetic polarity of the second permanent magnets facing the headphone body 100 is opposite to that of the first permanent magnets at the corresponding positions facing the decorative element 200. Through the above structural design, users can only install the decorative element 200 and the headphone body 100 according to a preset relative position, thereby facilitating users to quickly install the decorative element 200.

[0050] Of course, the first concave-convex fit structure and the second concave-convex fit structure are not limited to Figure 1 and Figure 2 The structure shown can also be adapted to other mating structures.

[0051] Please see Figure 3 and Figure 4 ,exist Figure 3 and Figure 4 In the illustrated embodiment, to further improve the stability of the connection between the decorative piece 200 and the headphone body 100, the first concave-convex mating structure on the headphone body 100 is configured as a snap-fit ​​groove 120. One end and the top of the snap-fit ​​groove 120 are open, while the other parts are closed. Simultaneously, snap-fit ​​plates extending towards the center of the snap-fit ​​groove 120 are respectively provided on both sides of the top opening of the snap-fit ​​groove 120, making the cross-sectional shape of the snap-fit ​​groove 120 an inverted T-shape (e.g., ...). Figure 4 (As shown).

[0052] Correspondingly, the second concave-convex mating structure is also set as an inverted T-shaped snap-fit ​​slider. During assembly, the snap-fit ​​slider is slid into one end opening of the snap-fit ​​groove 120 and slides along the snap-fit ​​groove 120 to the closed end of the snap-fit ​​groove 120. At this time, the snap-fit ​​slider can no longer slide along the snap-fit ​​groove 120 and the snap-fit ​​slider is assembled in place. At the same time, the second magnetic component on the decorative part 200 and the first magnetic component on the earphone body 100 attract each other.

[0053] It should be noted that, along the extension direction of the snap-fit ​​groove 120, the width of the snap-fit ​​groove 120 gradually decreases from its opening at one end. That is, the snap-fit ​​groove 120 can be a V-shaped groove or an inverted trapezoidal groove. Correspondingly, the snap-fit ​​protrusion also adopts a structure that matches the shape of the snap-fit ​​groove 120. This not only makes it easier for the snap-fit ​​protrusion to enter the snap-fit ​​groove 120, but also makes the fit between the snap-fit ​​protrusion and the snap-fit ​​groove 120 more tight as the degree to which the snap-fit ​​protrusion slides into the snap-fit ​​groove 120 increases.

[0054] Of course, it is foreseeable that the snap-fit ​​groove 120 can also be set on the decorative part 200, while the snap-fit ​​protrusion can be set on the headphone body 100; this is not a limitation.

[0055] In another embodiment, such as Figure 5 As shown, one of the first concave-convex fitting structure and the second concave-convex fitting structure may include two limiting grooves 130 with opposite openings and staggered arrangement. One end of the limiting groove 130 and the top are open, while the other directions are closed. The other of the first concave-convex fitting structure and the second concave-convex fitting structure may include two limiting protrusions 230 that correspond one-to-one with the limiting grooves 130. The shape of the limiting protrusions 230 may be exactly the same as the shape of the limiting grooves 130, or it may be different. Alternatively, the shape of the limiting protrusions 230 may be partially the same as the shape of the limiting grooves 130. No limitation is made here.

[0056] During installation, such as Figure 6 As shown, the decorative piece 200 and the headphone body 100 rotate relative to each other by a preset angle from their respective positions where the two limiting protrusions 230 are located at the openings of the limiting grooves 130. Figure 6 (clockwise direction), until the two limiting protrusions 230 respectively engage with the two limiting grooves 130. During disassembly, the decorative part 200 is rotated in the opposite direction to the headphone body 100 during assembly (in the direction of rotation during assembly). Figure 6 (If the middle direction is counterclockwise), the second concave-convex mating structure of the decorative part 200 can be disengaged from the first concave-convex mating structure on the headphone body 100.

[0057] Preferably, the cross-sections of the limiting groove 130 and the limiting protrusion 230 can also be inverted T-shaped, that is, the limiting groove 130 is a T-shaped groove and the limiting protrusion 230 is a T-shaped protrusion adapted to the T-shaped groove, so as to increase the stability of the fit between the limiting groove 130 and the limiting protrusion 230. In this way, after the limiting groove 130 and the limiting protrusion 230 are fitted together, the mutual attraction between the first magnetic element and the second magnetic element, as well as the snap-fit ​​limiting between the limiting groove 130 and the limiting protrusion 230, can make the connection between the limiting groove 130 and the limiting protrusion 230 more tight.

[0058] To facilitate the entry of the limiting protrusion 230 into the limiting groove 130, the width of the limiting groove 130 gradually narrows from the opening to the bottom, thus forming a flared groove, for example, it can form Figure 5 The V-shaped groove shown.

[0059] Specifically, the first concave-convex mating structure includes two limiting grooves 130 with opposite orientations and staggered arrangement, and the second concave-convex mating structure includes two limiting protrusions 230 adapted to the limiting grooves 130.

[0060] It should be noted, of course, that the shape of the limiting groove 130 is not limited to... Figure 5 In another embodiment of the V-shaped groove shown, the two limiting grooves 130 are two arc-shaped grooves with the same center.

[0061] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0062] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0063] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A Bluetooth headset, characterized in that, include: The earphone body (100) is provided with a first concave-convex mating structure and a first magnetic element, wherein the first magnetic element is disposed on the earphone body (100) at a position corresponding to the first concave-convex mating structure. Decorative component (200) is provided with a second concave-convex fitting structure and a second magnetic component. The second magnetic component is disposed on the decorative component (200) at a position corresponding to the second concave-convex fitting structure. The second concave-convex fitting structure is adapted to the first concave-convex fitting structure. The first concave-convex fitting structure and the second concave-convex fitting structure are interlocked with each other, and the first magnetic component and the second magnetic component are attracted to each other, so as to detachably attach the decorative component (200) to the headphone body (100).

2. The Bluetooth headset according to claim 1, characterized in that, The first concave-convex fitting structure is a conformal groove (110) provided on the headphone body (100), and the second concave-convex fitting structure is a conformal protrusion (220) provided on the decorative part (200).

3. The Bluetooth headset according to claim 2, characterized in that, The second magnetic component and the conformal protrusion (220) are an integral structure.

4. The Bluetooth headset according to claim 2, characterized in that, The second magnetic component is a ferromagnetic component, and the first magnetic component is a permanent magnet.

5. The Bluetooth headset according to any one of claims 2-4, characterized in that, The circumferential groove wall (112) of the conformal groove (110) is inclined from the bottom (111) of the conformal groove (110) to the opening of the groove, so that the conformal groove (110) forms an flared groove, and the circumferential sidewall of the conformal protrusion (220) is adapted to the shape of the circumferential groove wall (112) of the conformal groove (110).

6. The Bluetooth headset according to claim 1, characterized in that, The first magnetic component includes a plurality of first permanent magnets, and the magnetic polarity of at least one of the first permanent magnets facing the decorative component (200) is opposite to that of the other first permanent magnets facing the decorative component (200). The second magnetic component includes a plurality of second permanent magnets arranged in a one-to-one correspondence with the first permanent magnets, and the magnetic polarity of the second permanent magnets facing the headphone body (100) is opposite to that of the first permanent magnets at the corresponding positions facing the decorative component (200).

7. The Bluetooth headset according to claim 1, characterized in that, One of the first concave-convex fitting structure and the second concave-convex fitting structure includes two limiting grooves (130) with opposite openings and staggered arrangement. The other of the first concave-convex fitting structure and the second concave-convex fitting structure includes two limiting protrusions (230) that correspond one-to-one with the limiting grooves (130). The decorative piece (200) and the headphone body (100) are rotated relative to each other by a preset angle from the relative positions of the two limiting protrusions (230) located at the openings of the limiting grooves (130) until the two limiting protrusions (230) are respectively engaged in the two limiting grooves (130).

8. The Bluetooth headset according to claim 7, characterized in that, The two limiting grooves (130) are two arc-shaped grooves with the same center.

9. The Bluetooth headset according to claim 7, characterized in that, The limiting groove (130) is a T-shaped groove, and the limiting protrusion (230) is a T-shaped protrusion adapted to the T-shaped groove.

10. The Bluetooth headset according to claim 7, characterized in that, The width of the limiting groove (130) gradually decreases from the groove opening to the bottom of the groove.

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