Color: Black - Material: Plastic + rubber - Microphone: - Impedance: 2.2k ohms @ 1KHz 2.0V - Sensitivity: -42 +/- 3dB - Frequency response: 20Hz~20KHz - Working voltage: DC 1~10V - Speaker: - Impedance: 32 ohms - Sensitivity: 114dB +/- 3dB - Rated input power: 10mW - Max input power: 20mW - Easy to install with Velcro tape - Cable length: 142cm - Comes with connection cable (240cm) - Compatible with: - Kenwood TK-3107 / TK-3207 / TK2107 / TK2207 / TK-308 / TK-208 / TK-3118 / TK-2118 - QuanSheng TG-UV2 / TG-K4AT / TG-45A / TG-46AT / TG-42A / TG-3118 / TG-6118 - PuXing PX-777 / VEV-3288S / LT-6600 / LT-6288 / LT-6100PLUS - WouXun KG-679/689/669/801/803 / KG-UVD1P