Features:
1, A remote microphone with push to talk button you can clip anywhere.
2, The microphone transmits directly from your throat, so it is not sensitive to the background noise.
3, With the best-quality transparent acoustic tube that could hardly be detected by people around you, and protect your health from radio electromagnetic wave radiation.
4, This is exceptionally ideal for usage in high ambient environment such as driving, riding motorcycles and bicycles. And it is also ideal for surveillance purposes and security at airports, casinos, crowd control at conventions and concerts, and other working environment requiring discreet communications. The throat mic could be easily hidden under the collars too.

Specifications:
Two-pin standard diameter: Ear Approx. 3.5mm stereo (top pin).
Mic Approx. 2.5mm stereo (bottom pin)
Space of two-pin: Approx. 11mm
Color: Black

Compatible With Model:
for Kenwood KPG:
TH-D7, TH-D7A, TH-D7AG, TH-D7E, TH-F6, TH-F6A, TH-F7, TH-F7E, TH-G71, TH-G71A, TH-G71E, TH-K2, TH-K2A, TH-K2E, TH-K2ET, TH-21, TH-21AT, TH-21BT, TH-22, TH-22A, TH-22AT, TH-22E, TH-25, TH-26, TH-27, TH-28, TH31AT, TH31BT, TH41AT, TH41BT, TH-42, TH-42A, TH-42AT, TH-42E, TH-45, TH-46, TH-47, TH-48, TH-55, TH-75, TH-77, TH-G71, TH-205, TH-215, TH-225, TH-235, TH-235A, TH-235E, TH-315, TH-415.
for Kenwood TK:
TK-208/308,TK-220/320,TK-240/340, TK-240D/340D,TK-248/348, TK-250/350/353, TK-260/360,TK-260G/360G, TK-270/370, TK-270G/370G, TK-272G/372G/373G, TK-278G/378G/388GPro-Talk,TK-430/431, TK-2100/3100Pro-Talk,TK-2102/3102, Pro-Power,TK-2107/3107, Pro-Talk,TK2207,TK3207,TK-2160/3160.
for Baofeng:
Almost All: UV5R, BF-480, 490, 320,V6, V7, V8, 658, 520, 530, 999, 888, 777, 666S, 777S, 888S.
for RETEVIS: H-777, RT-5R, RT-5RV, RT-B6
for HYT: TC286 386 2685 3865 6685, TC 278 378 388, TC 2100 2088
for WOUXUN, for PUXING, for QUSHENGAN, for LINTON, for TYT etc: Almost All with a two pin plug, former pin diameter of 3.5 mm and 2.5 mm in diameter after pin, double pin from 8 mm within, 11 mm center distance of 2 pin.

Package list
1 x Throat Earpiece Headset
1 x Plastic Ear Bud