ITEM NAME:Headset Earpiece Mic Over Head Headphone Flexible Mic w/PTT Button for Kenwood Product Description Description: 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: