Commountain Heavy Duty Remote Speaker mic/Microphone with Reinforced Cable, Noise Reduction Mic, 3.5mm Audio Jack and Detachable Swivel Clip:

Features & Advantage:
-Heavy Duty Construction, Housing Made of High Impact Engineering Plastic
-Omni-Directional Electret Condenser Microphone & High Performance Micro Speaker Transmit High Quality Sound Even in Loud Environments
-TPU Cable Reinforced by Aramid Fiber & High Tensile Strength Coil Cord, Long-Life Design
-Rugged Detachable (Replaceable) Swivel Clip Made by Stainless Steel and Engineering Polycarbonate
-3.5mm Audio Jack Available for Listen Only Earpiece/Headset

Dimension Specification:
-Dimension of Microphone Housing: H 3.05xW 2.35 inch
-Cable Length without Stretching: approx 20 inch
-Cable Length with Full Stretching: at least 60 inch
-Coil Cord Length: 11 inch
-Cable Diameter: 1.9 inch

Speaker Electric Specification:
-Impedance: 8Ω±15% at 1.2KHz 1.0V
-Rated Input Power: 2.0W
-Max Input Power: 3.0W
-Output S.P.L.: 85dB±5dB

Microphone Electric Specification:
-Type: Omni-Directional
-Output Impedance: 2.2KΩ±10%
-Sensitivity: -43dB±2dB (1V/Pa)
-Frequency Range: 50Hz-20KHz

Compatible for Kenwood Radios As Follow:
-TH-D72A,TH-D74A,TH-K20A
-NX-3220,NX-3320,NX-220,NX-320,NX-240V,NX-340U,NX-420
-NX-1200DV NX-1300DU NX-1202AV NX-1302AU NX-1200NV NX-1300NU NX-P1200AV NX-P1300AU NX-P1202AV NX-P1302AU NX-P1200NV NX-P1300NU
-TK-208,TK-2100,TK-2102,TK-2130,TK-2160,TK-2170,TK-220,TK-2212,TK-2300,TK-2312,TK-2360,TK-240,TK-240D,TK-2400V,TK-2402V,TK-248,TK-250,TK-255,TK-260,TK-260G,TK-270,TK-270G,TK-272G,TK-278,TK-278G,TK-308,TK-3100,TK-3101,TK-3102,TK-3107,TK-3118,TK-3130,TK-3131,TK-3160,TK-3170,TK-3173,TK-3200,TK-3201,TK-3202,TK-3207,TK-3230,TK3230K,TK-3312,TK-3360,TK-340,TK-340D,TK-3400U,TK3400U4P,TK3400U16P,TK3402U16P,TK-3402U