1. There is one PTT and microphone, this is Special Headset for RETEVIS RT20(EDA001529701A). 2. With 1 Pin 2.5mm plug, fits either ear. 3. Fits on outside of the ear providing exceptional comfort. 4. Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses and noisy environments. 5. Length: 120cm 6. Weight: 28g
