Feature: 1. Throat conduction design -- Throat conduction can effectively avoid noise in the air when driving at high speed. 2. Easy to conceal and reduce noise -- Transparent air acoustic tube is easy to conceal, and the air acoustic tube transmits signals to reduce noise. 3. Sturdy and durability -- Clear sound quality is provided, and the PTT switch is sturdy and durability and can be used for a long time. 4. Adjustable coil size -- You can adjust the size of the coil as needed to make the radio conversation clearer. 5. Compatible with -- The throat earpiece headset is compatible with two way radio, such as for UV‑9R Plus, BF‑9700 and BF‑A58. Specification: Item Type: Acoustic Tube Earpiece Headset Material: Plastic Product Color: As Pictures Shown Product Weight: Approx. 75g / 2.6oz Package List: 1 x Screw 1 x Protective Cover 1 x Cable Tie 1 x Microphone