GB2550132A - Ear-hook microphone and ear-hook device thereof - Google Patents

Ear-hook microphone and ear-hook device thereof Download PDF

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Publication number
GB2550132A
GB2550132A GB1608068.1A GB201608068A GB2550132A GB 2550132 A GB2550132 A GB 2550132A GB 201608068 A GB201608068 A GB 201608068A GB 2550132 A GB2550132 A GB 2550132A
Authority
GB
United Kingdom
Prior art keywords
ear
hook
wire
microphone
hook device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1608068.1A
Other versions
GB201608068D0 (en
Inventor
Wang Jung-Kun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEATRON CORP
Original Assignee
NEATRON CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEATRON CORP filed Critical NEATRON CORP
Priority to GB1608068.1A priority Critical patent/GB2550132A/en
Publication of GB201608068D0 publication Critical patent/GB201608068D0/en
Publication of GB2550132A publication Critical patent/GB2550132A/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/105—Earpiece supports, e.g. ear hooks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1033—Cables or cables storage, e.g. cable reels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H04R1/1066—Constructional aspects of the interconnection between earpiece and earpiece support

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Headphones And Earphones (AREA)

Abstract

The ear-hook device comprises an ear-hook part 10 and a connecting part 20. The ear-hook part 10 comprises a first wire 11 and a second wire 12 may lie adjacent to the first wire 11. Further embodiments allow the second wire 12 to depart from the first wire 11 (figs 3, 4, 6 & 7). One end of the first wire 11 is connected to one end of the second wire 12; the other end of the first wire 11 penetrates into the connecting part 20. The ear-hook microphone comprises the ear-hook device, a guide rod 30 and a microphone 40. The guide rod 30 is positioned between the ear-hook device and the microphone 40. The first wire 11 and the second wire 12 are positioned to respectively abut against the user's ear back and head, allowing the ear-hook device to be hung on the user's ear stably and the pressure pressed on the user's ear to be distributed.

Description

EAR-HOOK MICROPHONE AND EAR-HOOK DEVICE THEREOF
The present invention relates to an ear-hook device, especially to the ear-hook device used in an ear-hook microphone. The present invention also relates to the ear-hook microphone comprising the ear-hook device. 2. Description of the Prior Art
With the advance of technology and living standards, high-tech products have been widely used in everyday lives. For example, hands-free microphones have replaced handheld microphones and have been used by public speakers and mobile phone users.
With reference to Fig. 15, a conventional hands-free microphone comprises a hook portion 60, a supporting portion 70, a thin rod 80 and a microphone 90. One end of the hook portion 60 is connected to the supporting portion 70, and the thin rod 80 is connected to the other end of the hook portion 60 opposite to the supporting portion 70. The hook portion 60 is formed in a C shape and comprises a wire 61 within the hook portion 60. The wire 61 is threaded into one end of the supporting portion 70. The thin rod 80 is connected to the wire 61 opposite to the supporting portion 70, and the microphone 90 is connected to the thin rod 80 opposite to the wire 61. The user can hang the hook portion 60 on the user’s ear, making the hook portion 60 abut against the user’s ear back. Then, the user can adjust the position of the thin rod 80 and the microphone 90 close to the mouth of the user.
With reference to Fig. 16, another conventional hands-free microphone is similar to the conventional hands-free microphone shown in Fig. 15. The differences between the two conventional hands-free microphones include that the supporting portion 70A of the conventional hands-frees microphone shown in Fig. 16 further comprises a connecting end 71 A, and one end of the thin rod 80A is connected to the connecting end 71A of the supporting portion 70A. However, when the user hangs any of the two conventional hands-free microphones on the ear and moves the body, any of the two conventional hands-free microphones is easy to drop from the ear. Besides, the hook portion 60A pressed on the ear back causes pain of the ear back as the conventional hands-free microphones are kept hanging on the ear for a long time.
To overcome the shortcomings, the main objective of the present invention provides an ear-hook microphone and an ear-hook device thereof to mitigate or obviate the aforementioned problems.
The ear-hook device in accordance with the present invention comprises an ear-hook part and a connecting part. The ear-hook part comprises a first wire having two ends, a second wire having two ends, a first end and a second end. The second wire is adjacent to the first wire. The first end is formed by connecting one of the ends of the first wire to one of the ends of the second wire of the ear-hook part. The first end of the ear-hook part is able to be bent into an arc-shaped and hooked form. The second end is formed by extending from the other end of the first wire opposite to the first end. The connecting part comprises a penetration end, and the penetration end is penetrated by the second end of the ear-hook part.
Preferably, the first wire of the ear-hook part is overlapped with the second wire of the ear-hook part.
Preferably, the two ends of the first wire of the ear-hook part are each respectively connected to the two ends of the second wire of the ear-hook part.
Preferably, the second end of the ear-hook part is coated by the connecting part.
Preferably, the second end of the ear-hook part is not coated by the connecting part.
Preferably, the materials of the first wire and the second wire of the ear-hook part are flexible metal.
Preferably, the ear-hook device in accordance with the present invention further comprises a wire cover; the wire cover respectively coats the first wire, the second wire, the first end and the second end of the ear-hook part.
Preferably, the material of the wire cover is silicone.
Preferably, the connecting part further comprises a connecting end, and the connecting end is adjacent to the penetration end of the connecting part.
The ear-hook microphone in accordance with the present invention comprises the ear-hook device, a guide rod and a microphone. The microphone is connected to one end of the guide rod, and the other end of the guide rod opposite to the microphone is connected to the first end of the ear-hook part of the ear-hook device. In another embodiment, the microphone is connected to one end of the guide rod, and the other end of the guide rod opposite to the microphone is connected to the connecting end of the connecting part of the ear-hook device.
As a user uses the ear-hook microphone and the ear-hook device thereof, the user pulls the first wire away from the second wire of the ear-hook part and hangs the first end of the ear-hook part on the user’s ear, allowing the first wire coated with the wire cover and the second wire coated with the wire cover respectively to abut against the user’s ear back and head. Therefore, the ear-hook microphone can be hung on the user’s ear more stably by increasing the contact areas between the first wire and user’s ear back, as well as between the second wire of the ear-hook part and the user’s head. Besides, the pressure pressed on the user’s ear back by the ear-hook part is distributed. Therefore, the problems of wearing instability and pain caused by wearing the hands-free microphones for a long time will be solved.
In the drawings:
Fig. 1 is a perspective view of a first embodiment of an ear-hook microphone and an ear-hook device thereof in accordance with the present invention;
Fig. 2 is a cross-sectional view of a first wire and a second wire of the ear-hook device in Fig. 1;
Fig. 3 is another perspective view of the first embodiment of the earhook microphone and the ear-hook device thereof in Fig. 1;
Fig. 4 is still another perspective view of the first embodiment of the ear-hook microphone and the ear-hook device thereof in Fig. 1;
Fig. 5 is a perspective view of a second embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention;
Fig. 6 is another perspective view of the second embodiment of the earhook microphone and the ear-hook device thereof in Fig. 5;
Fig. 7 is still another perspective view of the second embodiment of the ear-hook microphone and the ear-hook device thereof in Fig. 5;
Fig. 8 is a perspective view of a third embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention;
Fig. 9 is another perspective view of the third embodiment of the earhook microphone and the ear-hook device thereof in Fig. 8;
Fig. 10 is a perspective view of a fourth embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention;
Fig. 11 is a perspective view of a fifth embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention;
Fig. 12 is another perspective view of the fifth embodiment of the earhook microphone and the ear-hook device thereof in accordance with the present invention;
Fig. 13 is a perspective view of a sixth embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention;
Fig. 14 is a perspective view of a seventh embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention;
Fig. 15 is a perspective view of a conventional hands-free microphone; and
Fig. 16 is a perspective view of another conventional hands-free microphone.
With reference to Fig. 1, a first embodiment of the ear-hook device in accordance with the present invention comprises an ear-hook part 10 and a connecting part 20.
The ear-hook part 10 is formed in a C shape and corresponding to the contour of a human ear. The ear-hook part 10 comprises a first wire 11 having two ends and a second wire 12 having two ends. The second wire 12 is adjacent to the first wire 11, and one end of the first wire 11 is connected to one of the ends of the second wire 12 to form a first end 13 of the ear-hook part 10. The first end 13 of the ear-hook part 10 is able to be bent into an arc-shaped and hooked form corresponding to the contour of a user’s ear. The other end of the first wire 11 opposite to the first end 13 is extended to form a second end 14 of the ear-hook part 10. In an embodiment, the first wire 11 is overlapped with the second wire 12, and the materials of the first wire 11 and the second wire 12 of the ear-hook part 10 are flexible metal.
The connecting part 20 comprises a penetration end 21. The penetration end 21 is penetrated by the second end 14 of the ear-hook part 10 and the second end 14 of the ear-hook part 10 is coated by the connecting part 20.
With reference to Fig. 1, the first embodiment of the ear-hook microphone in accordance with the present invention comprises the ear-hook device, a guide rod 30, a microphone 40 and a wire cover 50. One end of the guide rod 30 is connected to the first end 13 of the ear-hook part 10 of the earhook device, and the microphone 40 is connected to the other end of the guide rod 30 opposite to the first end 13 of the ear-hook part 10. With references to Figs. 1 and 2, the wire cover 50 respectively coats the first wire 11, the second wire 12 and the first end 13 of the ear-hook part 10. In an embodiment, the material of the wire cover 50 is silicone.
With references to Figs. 3 and 4, as the user uses the first embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention, the user pulls the first wire 11 of the ear-hook part 10 away from the second wire 12 of the ear-hook part 10 and hangs the first end 13 of the ear-hook part 10 on the user’s ear, allowing the first wire 11 coated with the wire cover 50 and the second wire 12 coated with the wire cover 50 to respectively abut against the user’s ear back and head. The ear-hook microphone and the ear-hook device thereof in accordance with the present invention can be hung on the user’s ear more stably and the pressure pressed on the user’s ear is distributed by respectively abutting the first wire 11 and the second wire 12 against the user’s ear back and head. The connecting part 20 is positioned to abut the cavity below the user’s lobule. The user can adjust the position of the guide rod 30 and the microphone 40, allowing the microphone 40 to be close to the mouth of the user. The ear-hook microphone as shown in Fig. 3 can be hung on the user’s left ear, and the ear-hook microphone as shown in Fig. 4 can be hung on the user’s right ear.
With reference to Fig. 5, a second embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention is similar to the first embodiment in accordance with the present invention. The differences between the first embodiment and the second embodiment include that a connecting part 20A further comprises a connecting end 22A and the connecting end 22A is adjacent to the penetration end 21A of the connecting part 20A. One end of a guide rod 30A is connected to the connecting end 22 A of the connecting part 20A, and a microphone 40A is connected to the other end of the guide rod 30A opposite to the connecting end 22A of the connecting part 20A. With references to Figs. 6 and 7, the use of the second embodiment of the ear-hook microphone and the ear-hook device thereof is the same as that of the first embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention. The user pulls the first wire 11A of the ear-hook part 10A away from the second wire 12A of the ear-hook part 10A and hangs the first end 13 A of the ear-hook part 10A on the user’s ear.
With reference to Fig. 8, a third embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention is similar to that of the first embodiment in accordance with the present invention. The differences between the first embodiment and the third embodiment include that in the third embodiment, the two ends of the first wire 1 IB of the ear-hook part 10B are each respectively connected to the two ends of the second wire 12B of the ear-hook part 10B, and the second end 14B of the ear-hook part 10B is coated by the connecting part 20B.
With reference to Fig. 9, the use of the third embodiment of the earhook microphone and the ear-hook device thereof is similar to that of the first embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention. The user pulls the first wire 11B of the ear-hook part 10B away from the second wire 12B of the ear-hook part 10B and hangs the first end 13B of the ear-hook part 10B on the user’s ear. The earhook microphone and the ear-hook device thereof in accordance with the present invention can be hung on the user’s ear more stably and the pressure pressed on the user’s ear can be distributed by respectively abutting the first wire 11B and the second wire 12B against the user’s ear back and head.
With reference to Fig. 10, a fourth embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention is similar to that of the third embodiment. The differences between the third embodiment and the fourth embodiment include that in the fourth embodiment, the second end 14C of the ear-hook part 10C is not coated by the connecting part 20C. The use of the fourth embodiment of the ear-hook microphone and the ear-hook device thereof is the same as that of the third embodiment of the ear-hook microphone and the ear-hook device thereof.
With reference to Fig. 11, a fifth embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention is similar to that of the third embodiment. The differences between the third embodiment and the fifth embodiment include that in the fifth embodiment, a connecting part 20D further comprises a connecting end 22D, and the connecting end 22D is adjacent to the penetration end 2 ID of the connecting part 20D. One end of a guide rod 30D is connected to the connecting end 22D of the connecting part 20D, and a microphone 40D is connected to the other end of the guide rod 30D opposite to the connecting end 22D of the connecting part 20D. With reference to Fig. 12, the use of the fifth embodiment of the ear-hook microphone and the ear-hook device thereof is the same as that of the third embodiment of the ear-hook microphone and the earhook device thereof. The user pulls the first wire 11D of the ear-hook part 10D away from the second wire 12D of the ear-hook part 10D and hangs the first end 13D of the ear-hook part 10D on the user’s ear.
With reference to Fig. 13, a sixth embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention is similar to that of the fifth embodiment in accordance with the present invention. The differences between the fifth embodiment and the sixth embodiment include that in the sixth embodiment, a second end 14E of an earhook part 10E is not coated by a connecting part 20E. The use of the sixth embodiment of the ear-hook microphone and the ear-hook device thereof is the same as that of the fifth embodiment of the ear-hook microphone and the earhook device thereof in accordance with the present invention.
With reference to Fig. 14, a seventh embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention is similar to that of the fourth embodiment in accordance with the present invention. The differences between the seventh embodiment and the fourth embodiment include that in the seventh embodiment, a second end 14F of an ear-hook part 10F is able to be bent into a hooked form. The use of the seventh embodiment of the ear-hook microphone and the ear-hook device thereof is similar to that of the fourth embodiment of the ear-hook microphone and the ear-hook device thereof in accordance with the present invention. The second end 14F of the ear-hook part 10F is positioned to abut the cavity below the user’s lobule.
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims (11)

Claim (s):
1. An ear-hook device, comprising an ear-hook part 10, 10A, 10B, 10C, 10D, 10E, 10F, comprising a first wire 11,1 ΙΑ, 1 IB, 1 ID having two ends; a second wire 12, 12A, 12B, 12D having two ends, wherein the second wire 12, 12A, 12B, 12D is adjacent to the first wire 11,11 A, 1 IB, 11D; a first end 13, 13A, 13B, 13D, wherein the first end 13, 13A, 13B, 13D of the ear-hook part 10, 10A, 10B, 10D is formed by one of the ends of the first wire 11,1 ΙΑ, 1 IB, 1 ID connecting to one of the ends of the second wire 12, 12A, 12B, 12Dofthe ear-hook part 10, 10A, 10B, 10D, and the first end 13, 13A, 13B, 13D is able to be bent into an arc-shaped and hooked form; and a second end 14, 14B, 14C, 14E, 14F, wherein the other end of the first wire 11, 11A, 11B, 1 ID opposite to the first end 13, 13A, 13B, 13D extends to form the second end 14, 14B, 14C, 14E, 14F of the earhook part 10, 10B, 10C, 10E, 10F; and a connecting part 20, 20A, 20D, comprising a penetration end 21, 21 A, 2 ID, wherein the penetration end 21, 21 A, 2ID is penetrated by the second end 14, 14B, 14C, 14E, 14F of the ear-hook part 10, 10B, 10C, 10E, 10F.
2. The ear-hook device as claimed in claim 1, wherein the first wire 11, 11A of the ear-hook part 10, 10A is overlapped with the second wire 12, 12A of the ear-hook part 10, 10A.
3. The ear-hook device as claimed in claim 1, wherein the two ends of the first wire 1 IB, 1 ID of the ear-hook part 10B, 10D are each respectively connected to the two ends of the second wire 12 B, 12D of the ear-hook part 10B, 10D.
4. The ear-hook device as claimed in claim 3, wherein the second end 14B of the ear-hook part 10B is coated by the connecting part 20B.
5. The ear-hook device as claimed in claim 3, wherein the second end 14C of the ear-hook part IOC is not coated by the connecting part 20C.
6. The ear-hook device as claimed in claim 1, wherein the materials of the first wire 11, 11A, 11B, 11D and the second wire 12, 12A, 12B, 12D of the ear-hook part 10, 10A, 10B, 10D are flexible metal.
7. The ear-hook device as claimed in claim 1, wherein the ear-hook device further comprises a wire cover 50; the wire cover 50 respectively coats the first wire 11, the second wire 12 and the first end 13 of the ear-hook part 10.
8. The ear-hook device as claimed in claim 7, wherein the material of the wire cover 50 is silicone.
9. The ear-hook device as claimed in claims 1 to 8, wherein the connecting part 20, 20A, 20D further comprises a connecting end 22, 22A, 22D, and the connecting end 22, 22A, 22D is adjacent to the penetration end 21, 21 A, 2 ID of the connecting part 20, 20A, 20D.
10. An ear-hook microphone, comprising the ear-hook device as claimed in claims 1 to 8; a guide rod 30, 30A, 30D; and, a microphone 40, 40A, 40D, connected to one end of the guide rod 30, 30A, 30D, and the other end of the guide rod 30, 30A, 30D opposite to the microphone 40, 40A, 40D is connected to the first end 13, 13A, 13D of the earhook part 10, 14A, 14D of the ear-hook device.
11. An ear-hook microphone, comprising the ear-hook device as claimed in claim 9; a guide rod 30, 30A, 30D; and, a microphone 40, 40A, 40D, connected to one end of the guide rod 30, 30A, 30D, and the other end of the guide rod 30, 30A, 30D opposite to the microphone 40, 40A, 40D is connected to the connecting end 22, 22A, 22D of the connecting part 20, 20A, 20D of the ear-hook device.
GB1608068.1A 2016-05-09 2016-05-09 Ear-hook microphone and ear-hook device thereof Withdrawn GB2550132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1608068.1A GB2550132A (en) 2016-05-09 2016-05-09 Ear-hook microphone and ear-hook device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1608068.1A GB2550132A (en) 2016-05-09 2016-05-09 Ear-hook microphone and ear-hook device thereof

Publications (2)

Publication Number Publication Date
GB201608068D0 GB201608068D0 (en) 2016-06-22
GB2550132A true GB2550132A (en) 2017-11-15

Family

ID=56297374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1608068.1A Withdrawn GB2550132A (en) 2016-05-09 2016-05-09 Ear-hook microphone and ear-hook device thereof

Country Status (1)

Country Link
GB (1) GB2550132A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009065408A1 (en) * 2007-11-23 2009-05-28 Gn Netcom A/S Frame earhook
US20090274331A1 (en) * 2008-05-02 2009-11-05 Mipro Electronics Co., Ltd. Microphone device adapted to be worn on an ear
CN204652611U (en) * 2015-06-10 2015-09-16 王莎莎 A kind of ear hook type microphone
WO2016041950A1 (en) * 2014-09-15 2016-03-24 Dpa Microphones A/S Headworn microphone system with an earpiece

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009065408A1 (en) * 2007-11-23 2009-05-28 Gn Netcom A/S Frame earhook
US20090274331A1 (en) * 2008-05-02 2009-11-05 Mipro Electronics Co., Ltd. Microphone device adapted to be worn on an ear
WO2016041950A1 (en) * 2014-09-15 2016-03-24 Dpa Microphones A/S Headworn microphone system with an earpiece
CN204652611U (en) * 2015-06-10 2015-09-16 王莎莎 A kind of ear hook type microphone

Also Published As

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