- Designed to be worn under helmets or safety caps.
- Microphone: M-7A Electret(nominal 50 ohm).
- Exclusive, patented flex/wire boom for easy, precise microphone placement.
- Rotates 200°for left or right sideplacement.
- Earphone: Lightweight Dynamic(nominal 300 ohm) wired in series.
- Cord: 4 conductor, 5′ Coil.
- Plug: PJ-051.
- Microphone on/off button.
- NRR: 23dB.