IFeng 1 Pin 3.5mm D Shape Listen Only Soft Rubber Earpiece Headset for Motorola Radio There is no PTT or Microphone, this is for listening only. With one pin 3.5mm plug jack, fits either ear Fits on outside of the ear providing exceptional comfort. Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses and noisy environments. For the following Motorola portable two way radios