Magnetic Bluetooth headphone with interchangeable microphone stems

Abstract

The utility model relates to a magnetic type Bluetooth headset with interchangeable microphone rods, which comprises an arc-shaped head-mounted bracket and two headset main bodies, a microphone rod assembly part is constructed on the outer side surface of one of the headset main bodies, the microphone rod assembly part is provided with a limiting boss, and a third magnetic piece and a conductive elastic needle are arranged on the top surface of the limiting boss. The conductive elastic needle is communicated with a main circuit in the earphone main body; the microphone rod assembly comprises an installation disc and a microphone rod, the inner side of the installation disc is provided with a cover opening covering the limiting boss in a matched mode, the shape and size of the cover opening are matched with those of the limiting boss, the inner bottom of the cover opening is provided with a fourth magnetic attraction piece and a conductive contact, the installation disc is connected with the earphone body through magnetic attraction, and the conductive contact is electrically connected with a microphone in the microphone rod. And a microphone signal reaching the microphone rod is transmitted to a main circuit of the earphone main body. The microphone rod assembly is replaceable, a user can easily detach the lower microphone rod assembly and replace the upper earphone shell, personalized appearance customization is achieved, different aesthetic requirements are met, the structure is simple, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent audio equipment technical field especially is involved in bluetooth head -wearing earphone. BACKGROUND

[0002] The head -wearing earphone on the market currently has the deficiency in the noise reduction, connection mode and individualized customization, lacks the dismantling and replacement, and this kind of earphone cannot satisfy the individualized and diversified use demand of consumer. For example, the microphone rod of the traditional earphone system is mostly fixed on the structure of the earphone main body, the microphone rod can rotate 90-270 degrees, the structure design microphone rod cannot be separated from the earphone main body. This design has no practicality when the microphone function is not needed temporarily, and has certain obstruction, which influences the use experience.

[0003] Therefore, a new technical scheme needs to be researched to solve the above problems. SUMMARY

[0004] The utility model discloses a kind of magnetic attraction type interchangeable microphone rod's bluetooth head -wearing earphone, can well solve the above technical problems.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] Magnetic attraction type interchangeable microphone rod's bluetooth head -wearing earphone, including arc head -wearing support and two earphone main bodies, the two earphone main bodies are connected at the two ends of the head -wearing support respectively, the earphone main body has inner side and outer side, earphone main body's inner side is assembled ear sleeve, and microphone rod assembly is connected by magnetic attraction on the outer side of one of earphone main body and builds microphone rod assembly part;The microphone rod assembly part has the limit boss that protrudes from the outer side of earphone main body, and third magnetic attraction piece and conductive spring needle are arranged on the top surface of limit boss, and the conductive spring needle is communicated with main circuit in the earphone main body;Third magnetic attraction piece is arranged on the outer periphery of conductive spring needle and is arranged around conductive spring needle at intervals;The microphone rod assembly includes mounting disc and microphone rod, microphone rod is arranged on the outer side of the mounting disc and can be adjusted relatively rotatable, and the inner side of the mounting disc is equipped with cover mouth that covers limit boss, the shape and size of cover mouth are matched with limit boss, fourth magnetic attraction piece and conductive contact are arranged on the inner bottom of cover mouth, and the conductive contact is electrically connected with microphone in microphone rod;The mounting disc is covered with limit boss and fourth magnetic attraction piece and the suction of third magnetic attraction piece to achieve the assembly connection with earphone main body, so that microphone rod assembly is assembled to earphone main body, and conductive contact and conductive spring needle are in contact and conduction, and the microphone signal of microphone rod reaches main circuit in earphone main body.

[0007] Furthermore, the above solution includes a positioning groove on the top surface of the limiting boss and a positioning post on the inner bottom of the corresponding cover opening. When the microphone rod assembly is assembled onto the headphone body, the positioning post is inserted into the positioning groove to provide assembly positioning.

[0008] A further improvement of the above solution is that the periphery of the limiting boss is provided with an anti-retraction groove, and the inner edge of the corresponding cover opening is provided with a buckle. When the microphone rod assembly is assembled onto the headphone body, the buckle is engaged with the anti-retraction groove.

[0009] The above solution is further provided that there are two anti-reverse grooves on the limiting boss, which are arranged symmetrically, and the distribution of the two anti-reverse grooves is exactly on the same straight line as the distribution of the third magnetic suction component.

[0010] The above solution further includes a sound outlet, a first limiting part, and a first magnetic attractor on the inner side of the headphone body. The first limiting part surrounds the sound outlet, and the first magnetic attractor is arranged on the outer periphery of the first limiting part and spaced along the trajectory of the first limiting part. The earcup is provided with a sound outlet, a second limiting part, and a second magnetic attractor. The number and distribution of the second magnetic attractors match the first magnetic attractors. When the earcup is assembled onto the inner side of the headphone body, the second limiting part aligns with the first limiting part, and the second magnetic attractor is attracted to the first magnetic attractor. The sound outlet is directly opposite and connected to the sound outlet.

[0011] Furthermore, the above solution includes a sealing ring on the inner side of the headphone body, which is arranged around the outer periphery of the first limiting part and surrounds the trajectory of the first limiting part; a sealing bone is provided on the ear cup, and after the ear cup is magnetically connected to the headphone body, the sealing bone is tightly pressed against the sealing ring.

[0012] The above solution is further described as follows: the first limiting part is a convex bulge raised from the inner side of the headphone body, and a radially outwardly expanding anti-fooling part is provided on the corresponding side of the convex bulge; the second limiting part on the ear cup is a ring edge raised from the ear cup, and the shape and size of the ring edge match the convex bulge, so that the second limiting part and the first limiting part are aligned and fitted to form a ring connection relationship; the sealing bone is a bone strip constructed along with the ring edge on the outer periphery of the ring edge.

[0013] A further aspect of the above solution is that the root of the first limiting part is provided with a radially outwardly expanding annular platform, which is positioned opposite to the sealing bone. After the ear cover is assembled into the headphone body, the annular platform and the sealing bone together clamp the sealing ring.

[0014] The above solution further includes four or more first magnetic components distributed around the outer periphery of the first limiting part. These four or more first magnetic components protrude from the inner side of the earphone body and have the same protrusion height. The protrusion height of the first magnetic components is lower than the height of the ring platform, and the first magnetic components and the ring platform together support the sealing ring. After the earphone is assembled into the earphone body, the ring platform and the sealing bone together clamp the sealing ring, and the first magnetic component and the second magnetic component clamp the sealing ring when they are attracted to each other.

[0015] Furthermore, the above solution includes a noise reduction unit consisting of a combination of a feedforward microphone and a feedback microphone within the main body of the earphone.

[0016] By adopting the above structure, the present invention achieves the following beneficial effects:

[0017] The microphone assembly is connected to the earphone body via magnetic attraction and a snap-on mechanism. The microphone can rotate 270 degrees, and the call signal is connected to the earphone body via a spring-loaded pin. Users can easily remove the microphone assembly and replace the earpiece for personalized customization to meet different aesthetic needs. Utilizing the principle of magnetic attraction and repulsion, the microphone assembly and earphone body are automatically aligned and secured, ensuring a consistent fit. When call functionality is needed, the microphone assembly can be easily replaced for calls, and the efficient structural assembly ensures better call quality. When call functionality is not needed, the microphone assembly can be easily removed and replaced with the earpiece to transform it into a lightweight, ordinary over-ear Bluetooth headset. It is highly practical and allows for personalized customization to meet diverse aesthetic preferences.

[0018] Furthermore, the ear tips of this invention are also magnetically connected to the headphone body. Different materials and structures of ear tips are designed to meet different acoustic requirements, such as prioritizing bass effects or pursuing high-fidelity sound quality. For different weather conditions, cloth ear tips are used for warmth in winter, while leather ear tips are more comfortable as they do not absorb sweat. The magnetic connection to the headphones allows users to quickly change ear tips according to their preferences and usage scenarios. Through an effective assembly structure design, the attraction of opposite poles and the repulsion of like poles ensure automatic alignment and tightening, guaranteeing airtightness between the ear tips and the headphones. This ensures that the acoustic curve of the headphones will not change due to airtightness, thus altering the noise reduction effect and sound quality, further improving the performance and quality of the headphones. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0020] Appendix Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0021] Appendix Figure 3 for Figure 2 A magnified schematic diagram of a local structure;

[0022] AppendixFigure 4 This is a schematic diagram of the combined structure of the microphone rod assembly and the headphone body of this utility model;

[0023] Appendix Figure 5 for Figure 4 A magnified schematic diagram of a local structure;

[0024] Appendix Figure 6 This is a schematic diagram of the combined structure of the earcup and the main body of the earphone according to this utility model;

[0025] Appendix Figure 7 for Figure 6 A magnified schematic diagram of a local structure;

[0026] Appendix Figure 8 for Figure 6 An enlarged schematic diagram of the structure of the earphone body with a sealing ring attached. Detailed Implementation

[0027] The following will further explain the concept, specific structure and technical effects of the utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the utility model.

[0028] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These terms are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] See Figure 1 , 2 Figures 3, 4, 5, 6, 7, and 8 are schematic diagrams of a preferred embodiment of this utility model. This utility model relates to a Bluetooth headset with a magnetically interchangeable microphone rod, comprising an arc-shaped headband 1 and two earphone bodies 2. The two earphone bodies 2 are respectively connected to both ends of the headband 1, forming a left and right earphone system, facilitating headwear use. Each earphone body 2 has an inner side and an outer side. Ear covers 3 are assembled on the inner side of the earphone body 2, and a microphone rod assembly is constructed on the outer side of one of the earphone bodies 2. This microphone rod assembly is magnetically connected to a microphone rod assembly 4. Through the magnetic structure, the microphone rod assembly 4 is assembled on the earphone body 2. The operation is simple, the positioning is accurate, and the assembly is convenient. This allows users to flexibly replace different types of microphone rod assemblies 4 or ear shells on the earphone body 2 according to their needs, providing selective use and personalized appearance customization to meet different aesthetic requirements.

[0030] In this embodiment, the earcup 3 is also magnetically connected to the headphone body 2. The inner side of the headphone body 2 is provided with a sound outlet 21, a first limiting part 22, and a first magnetic attractor 23. The first limiting part 22 surrounds the sound outlet 21, and the first magnetic attractor 23 is disposed around the outer periphery of the first limiting part 22 and spaced along its trajectory. The earcup 3 is provided with a sound outlet 31, a second limiting part 32, and a second magnetic attractor 33. The number and distribution of the second magnetic attractors 33 match the first magnetic attractors 23. The earcup 3 consists of a support body and a flexible pad attached to the support body. The flexible pad can be made of materials such as cloth or leather. The support body is provided with a sound outlet 31, a second limiting part 32, and a second magnetic attractor 33. The second limiting part 32 surrounds the sound outlet 31, which can be arranged in a ring or array as needed. When the earcup 3 is assembled onto the inner side of the headphone body 2, the second limiting part 32 and the first limiting part 22 are aligned and cooperate to provide positioning and limiting; the second magnetic part 33 is attracted together with the first magnetic part 23 to realize the fixed installation of the earcup; and the sound outlet 31 is directly connected to the sound outlet 21 to collect audio output, and the distance between the two is used to construct a corresponding sound cavity to improve the audio output effect and obtain a better listening experience.

[0031] The microphone assembly has a limiting boss 24 protruding from the outer side of the earphone body 2, and a third magnetic 25 and a conductive spring pin 26 are provided on the top surface of the limiting boss 24. The conductive spring pin 26 is connected to the main circuit inside the earphone body 2. The third magnetic 25 is disposed on the outer periphery of the conductive spring pin 26 and is arranged at intervals around the conductive spring pin. The microphone assembly 4 includes a mounting plate 41 and a microphone 42. The microphone 42 is disposed on the outer side of the mounting plate 41 and can be rotated and adjusted relative to it. The inner side of the mounting plate 41 is provided with a cover opening 411 adapted to cover the limiting boss 24. The shape and size of the cover opening 411 match the limiting boss 24. A fourth magnetic 412 and a conductive contact 413 are provided on the inner bottom of the cover opening 411. The conductive contact 413 is electrically connected to the microphone in the microphone 42. The mounting plate 41 achieves assembly connection with the headphone body 2 by covering the limiting boss 24 with the cover 411 and by the attraction between the fourth magnetic member 412 and the third magnetic member 25, allowing the microphone rod assembly 4 to be assembled onto the headphone body 2. The conductive contact 413 contacts the conductive spring pin 26, enabling the microphone signal from the microphone rod to be sent to the main circuit of the headphone body 2. The number and position of the conductive contact 413 and the conductive spring pin 26 are matched to satisfy signal transmission requirements.

[0032] In this embodiment, the first magnetic absorbing component 23, the second magnetic absorbing component 33, the third magnetic absorbing component 25 and the fourth magnetic absorbing component 412 are all magnets. They are assembled on the headphone body 2, the ear cover 3 and the microphone rod assembly 4 respectively by means of tight fitting or integral injection molding embedding, and are paired respectively in a way that satisfies opposite poles attracting each other. The attraction force is large, and the assembly is convenient and stable.

[0033] When the call function is needed, the microphone assembly 4 can be easily replaced. Through magnetic attraction, quick assembly and connection are achieved. The conductive contact 413 and conductive spring pin 26 are connected to transmit the microphone signal to the main circuit of the earphone body 2, achieving the call function. When the call function is not needed, the microphone assembly 4 can be easily removed and replaced with an ear shell, transforming it into a lightweight ordinary over-ear Bluetooth headset. The assembly method of the ear shell is the same as that of the microphone assembly 4. Preferably, the structure of the ear shell is the same as that of the mounting plate 41, thus achieving quick replacement. This invention is highly practical and allows for personalized appearance customization to meet different aesthetic needs.

[0034] Figure 4 , 5 As shown, in this embodiment, the top surface of the limiting boss 24 is also provided with a positioning groove 27, and the inner bottom of the corresponding cover opening 411 is provided with a positioning post 414. When the microphone rod assembly 4 is assembled onto the earphone body 2, the positioning post 414 is inserted into the positioning groove 27 to provide assembly positioning. The periphery of the limiting boss 24 is provided with an anti-retraction groove 241, and the inner edge of the corresponding cover opening 411 is provided with a buckle 415. When the microphone rod assembly 4 is assembled onto the earphone body 2, the buckle 415 is fastened together with the anti-retraction groove 241. Furthermore, there are two anti-retraction grooves 241 on the limiting boss 24, which are symmetrically arranged, and the distribution of the two anti-retraction grooves 241 is exactly on the same straight line as the distribution of the third magnetic suction member 25, thereby obtaining the feature of multi-point locking across a straight line and improving connection stability. The positioning post 414 is inserted into the positioning slot 27 to obtain effective assembly positioning, which facilitates the assembly of the microphone rod assembly 4. At the same time, the snap fastener 415 is fastened to the anti-retraction slot 241, and the third magnetic suction part 25 is attracted to the fourth magnetic suction part 412, so that the microphone rod assembly 4 can be assembled onto the headphone body 2. The assembly is convenient and quick, and the connection is stable and reliable, and it can ensure the conductive contact 413 and the conductive spring pin 26 are connected.

[0035] Figure 2 , 3 As shown in Figure 8, in this embodiment, a sealing ring 5 is also provided on the inner side of the headphone body 2. The sealing ring 5 is disposed around the outer periphery of the first limiting part 22 and surrounds the trajectory of the first limiting part 22. A sealing bone 34 is provided on the ear cup 3. After the ear cup 3 is magnetically connected to the headphone body 2, the sealing bone 34 tightly presses against the sealing ring 5 to achieve a seal and ensure the airtightness between the ear cup 3 and the headphone body 2. This ensures that the acoustic curve of the headphone will not change due to airtightness, which not only has a better noise reduction effect, but also improves the sound quality and obtains a better listening experience. The ear cup 3 and the headphone body 2 are disassembled and reassembled based on automatic alignment and suction sealing. This is a non-destructive disassembly and assembly structure. After repeated disassembly and assembly tests, the noise reduction effect is the same, ensuring replaceability and product quality.

[0036] In this embodiment, the first limiting part 22 is a convex bulge protruding from the inner side of the earphone body 2. The convex bulge is integrally manufactured with the earphone body 2, forming a slightly arched shape, which is beneficial for audio output and also achieves effective alignment and assembly. A radially outwardly expanding anti-foolproof part 221 is provided on the corresponding side of the convex bulge to obtain an accurate assembly direction, facilitate alignment and assembly, and ensure stable and accurate assembly. The second limiting part 32 on the ear sleeve 3 is a ring protruding from the ear sleeve 3, and the shape and size of the ring match the convex bulge, so that the second limiting part 32 and the first limiting part 22 are aligned and fitted to form a ring connection. The sealing bone 34 is a bone strip constructed along with the ring on the outer periphery of the ring, with a simple structure and convenient and quick assembly. Preferably, in this embodiment, the cross-sectional shape of the sealing bone 34 is V-shaped, and the V-shaped tip presses against the sealing ring 5 to increase the sealing effect and improve airtightness.

[0037] Furthermore, the root of the first limiting part 22 is provided with a radially outwardly expanding annular platform 222, which is directly opposite to the sealing bone 34. After the ear cover 3 is assembled to the earphone body 2, the annular platform 222 and the sealing bone 34 together clamp the sealing ring 5. The annular platform 222 provides a bearing plane and support force, which is conducive to the sealing bone 34 tightly pressing against the sealing ring 5, and also helps to improve the airtightness of the assembly. In this embodiment, four or more first magnetic suction members 23 are distributed around the outer periphery of the first limiting part 22. These four or more first magnetic suction members 23 protrude from the inner side of the earphone body 2 and have the same protrusion height. The protrusion height of the first magnetic suction members 23 is lower than the height of the ring platform 222. In this embodiment, the protrusion top surface of the first magnetic suction member 23 is slightly lower than the ring platform 222. Thus, the first magnetic suction member 23 and the ring platform 222 are used together to support the sealing ring 5. The sealing ring 5 is preferably a flat EVA sealing ring. When assembling the sealing ring 5, it is first embedded in the outer periphery of the first limiting part 22. Then, the ear cover 3 is assembled to the earphone body 2. The ring platform 222 and the sealing bone 34 clamp the sealing ring 5 together. When the first magnetic suction member 23 and the second magnetic suction member 33 are attracted, they clamp the sealing ring 5, which increases the installation structure of the sealing ring 5 and further increases the sealing effect, improving the airtightness of the earphone assembly.

[0038] In this embodiment, the headphone body 2 contains a noise reduction unit that combines a feedforward microphone and a feedback microphone to construct a stable dual-feedback ANC noise reduction system. Combined with the aforementioned non-destructive disassembly and assembly structure, it achieves excellent noise reduction effect and improves the performance of the headphone.

[0039] This invention features a microphone assembly, ear tips, and earphone body connected magnetically, allowing for easy replacement. Users can easily change ear tips and ear shells in different colors, patterns, and materials to personalize the appearance and meet diverse aesthetic needs. Utilizing the attraction of opposite poles and the repulsion of like poles, automatic alignment and tightening ensure a stable and reliable connection with the earphone body. When call functionality is needed, the microphone assembly can be easily installed for calls, and the efficient structural assembly ensures better call quality. When call functionality is not needed, the microphone assembly can be easily removed and replaced with ear shells, transforming the device into a lightweight, ordinary over-ear Bluetooth headset. Furthermore, the efficient assembly design ensures airtightness between the ear tips and the earphone, preventing changes in the acoustic curve due to airtightness, thus maintaining noise reduction and sound quality, further enhancing the headset's performance and overall quality.

[0040] While the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention should not be limited to the same structure and operation as described above and the accompanying drawings. For those skilled in the art, many equivalent improvements and variations can be made to the above embodiments through logical analysis, reasoning or limited experiments without exceeding the concept and scope of the present invention, but these improvements and variations should all fall within the scope of protection claimed by the present invention.

Claims

1. A Bluetooth headset with magnetically interchangeable microphone rods, comprising an arc-shaped headband (1) and two earphone bodies (2), the two earphone bodies (2) being respectively connected to both ends of the headband, characterized in that: The headphone body (2) has an inner side and an outer side. The inner side of the headphone body (2) is equipped with an ear cover (3), and a microphone rod assembly is constructed on the outer side of one of the headphone bodies (2). The microphone rod assembly is magnetically connected to the microphone rod assembly (4). The microphone assembly has a limiting boss (24) protruding from the outer side of the headphone body (2), and a third magnetic attractor (25) and a conductive spring pin (26) are provided on the top surface of the limiting boss (24). The conductive spring pin (26) is connected to the main circuit inside the headphone body (2). The third magnetic attractor (25) is disposed on the outer periphery of the conductive spring pin (26) and arranged at intervals around the conductive spring pin. The microphone assembly (4) includes a mounting plate (41) and a microphone (42). The microphone (42) is disposed on the outer side of the mounting plate (41) and can be rotated and adjusted relative to it. The inner side of the mounting plate (41) is provided with a cover (411) that fits to cover the limiting boss (24). The shape and size of the cover (411) match the limiting boss (24). A fourth magnetic suction member (412) and a conductive contact (413) are provided on the inner bottom of the cover (411). The conductive contact (413) is electrically connected to the microphone in the microphone rod (42). The mounting plate (41) achieves assembly connection with the headphone body (2) by covering the limiting boss (24) with the cover (411) and attracting the fourth magnetic suction member (412) and the third magnetic suction member (25), so that the microphone rod assembly (4) is assembled into the headphone body (2), and the conductive contact (413) contacts the conductive spring pin (26) to conduct, so that the microphone signal of the microphone rod is sent to the main circuit of the headphone body (2).

2. The Bluetooth headset with magnetically interchangeable microphone rods according to claim 1, characterized in that: The top surface of the limiting boss (24) is also provided with a positioning groove (27), and the inner bottom of the corresponding cover (411) is provided with a positioning post (414). When the microphone rod assembly (4) is assembled onto the headphone body (2), the positioning post (414) is inserted into the positioning groove (27) to provide assembly positioning.

3. The Bluetooth headset with magnetically interchangeable microphone rods according to claim 1 or 2, characterized in that: The limiting boss (24) has an anti-retraction groove (241) on its periphery, and the inner edge of the corresponding cover opening (411) has a buckle (415). When the microphone rod assembly (4) is assembled onto the headphone body (2), the buckle (415) is fastened together with the anti-retraction groove (241).

4. The Bluetooth headset with magnetically interchangeable microphone rods according to claim 3, characterized in that: The limiting boss (24) has two anti-reverse grooves (241) arranged symmetrically, and the distribution of the two anti-reverse grooves (241) is exactly on the same straight line as the distribution of the third magnetic suction member (25).

5. The Bluetooth headset with magnetically interchangeable microphone rods according to claim 1, characterized in that: The inner side of the headphone body (2) is provided with a sound outlet (21), a first limiting part (22) and a first magnetic attractor (23). The first limiting part (22) is arranged around the sound outlet (21), and the first magnetic attractor (23) is arranged on the outer periphery of the first limiting part (22) and spaced along the trajectory of the first limiting part (22). The ear cover (3) is provided with a sound outlet (31), a second limiting part (32) and a second magnetic attractor (33). The number and distribution of the second magnetic attractors (33) are matched with the first magnetic attractor (23). When the ear cover (3) is assembled onto the inner side of the headphone body (2), the second limiting part (32) is aligned with the first limiting part (22), and the second magnetic attractor (33) is attracted together with the first magnetic attractor (23). The sound outlet (31) is directly connected to the sound outlet (21).

6. The Bluetooth headset with magnetically interchangeable microphone rods according to claim 5, characterized in that: The inner side of the headphone body (2) is also provided with a sealing ring (5), which is set on the outer periphery of the first limiting part (22) and surrounds the first limiting part (22) along its trajectory; the ear sleeve (3) is provided with a sealing bone (34), and after the ear sleeve (3) is magnetically connected to the headphone body (2), the sealing bone (34) presses tightly against the sealing ring (5).

7. The Bluetooth headset with magnetically interchangeable microphone rods according to claim 6, characterized in that: The first limiting part (22) is a convex bulge raised from the inner side of the headphone body (2), and a radially outwardly expanding anti-fooling part (221) is provided on the corresponding side of the convex bulge. The second limiting part (32) on the ear cover (3) is a ring edge raised from the ear cover (3), and the shape and size of the ring edge match the convex bulge, so that the second limiting part (32) and the first limiting part (22) are aligned and fitted to form a ring connection relationship. The sealing bone (34) is a bone strip constructed along with the ring edge on the outer periphery of the ring edge.

8. The Bluetooth headset with magnetically interchangeable microphone rods according to claim 7, characterized in that: The first limiting part (22) has a radially outwardly expanding ring platform (222) at its root. The ring platform (222) is positioned opposite the sealing bone (34). After the ear cover (3) is assembled into the headphone body (2), the ring platform (222) and the sealing bone (34) together clamp the sealing ring (5).

9. The Bluetooth headset with magnetically interchangeable microphone rods according to claim 8, characterized in that: The outer periphery of the first limiting part (22) is provided with four or more first magnetic suction members (23), which are exposed from the inner side of the headphone body (2) and are exposed at the same height. The exposed height of the first magnetic suction member (23) is lower than the height of the ring platform (222), and the first magnetic suction member (23) and the ring platform (222) together support the sealing ring (5). After the ear cover (3) is assembled into the headphone body (2), the ring platform (222) and the sealing bone (34) together clamp the sealing ring (5), and the first magnetic suction member (23) and the second magnetic suction member (33) clamp the sealing ring (5) when they are attracted together.

10. The Bluetooth headset with magnetically interchangeable microphone rods according to claim 1, characterized in that: The headphone body (2) contains a noise reduction unit consisting of a feedforward microphone and a feedback microphone.

Images