Earpiece Noise Reduction Unilateral Headset Headphone for Baofeng PTT Features: The headband tape is made of breathable nylon cloth with velcro, the length can be adjusted to fit for differnt headsize. It is thin and meshed. It can be worn with a helmet without feeling stuffy. Super soft and comfortable earmuff, it can be switched between the right side and left side, so you can use it at your favorite position. Omni-directional condenser microphone which can produce sound even in loud environments. The goose neck of the mic can be adjusted at any position to make sure you get best sound tranmission. Specification: and Reinforced polymer structure Frequency Response: 150Hz-500Hz Sensitivity: 46-60dB Impedance: 8Ohms Adjustable and elasticated nylon strap Designed for use with helmets and hats Low-profile, slim profile Colour: Black Weight: 124g Connector: 2-pin KENWOOD Colour: Black. Weight: 78g Package include: 1pcs*headset 1pcs*headband tape 1pcs*goose mic 1pcs*K1 tactical U94 PTT