Feature:
Lightweight and comfortable, even if used for long periods of time
Adjustable wearing length, good elasticity.
The microphone is flexible, and easily to adjust according to the user's needs.

Specification:
Wearing way: Over Head
Wire length: about 168cm/66.14''
Horn size: 38x6.0mm/1.49x0.23''
Speaker impedance: 32 ohm ± 15% 1.0khz
Rated input power: 0.5W
Maximum input power: 1W
Sensitivity: 110 ± 4dB / 1MW 1kHz
Distortion rate: < 5%
Frequency response: 200Hz+- 8kHz
Microphone size: 9.7x4.5mm/0.38x0.17''
Sensitivity: - 43 ± 3dB
Package size: 220mm * 150 mm * 100mm/8.66*5.9*3.93''
Package weight: 196g

Compatibility:
For Retevis: H777,RT7,RT1,RT3,RT21,RT22,RT23,RT24,RT26,RT27,RT5,RT5R,RT5RV,RT81
For Kenwood KPG: KPG27D,KPG29D,KPG48D,KPG49,KPG55D,KPG56D,KPG62D,KPG66D,KPG69D,KPG70D,KPG74D,KPG75D,KPG77D,KPG82D,KPG87D
For Kenwood TH:
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 272G/372G/373G,TK-270G/370G,TK-278G/ 378G/ 388GPro-Talk,TK 430/431,TK-2100 / 3100Pro-Talk,TK-2102 / 3102Pro-Power, TK-2107 / 3107Pro-Talk,TK2207,TK3207,TK-2160 / 3160
For Baofeng: UV5R,UV5RA,UV5RE,UV5REPlus,UVB6,UVB5,UV-8,UV 8D,UV5RB/UV5RC/UV5RD / GT3 / GT5 / 480/490/320 / V6 / V7 / V8 / 658/520/530/999/888 / 777 / 666S / 777S / 888S / 388A / A5 / F8 + / A52

Note:
Please allow 1-3mm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.