bone conduction

Elastic headband with bone conduction microphone and speaker. Bone conduction speaker mounts behind ear. Conventional earpiece with acoustic tube attached from receiver to ear.

Bone conduction microphone and speaker mounted on leather covered bracket. Attaches to firefighting or rescue helmet. Microphone sits behind left ear. Speaker sits alongside right ear. Fits most ratchet headband helmet models. Interface available for connecting to portable radio.

Under-helmet radio transmit headset. Noise-canceling bone conduction microphone, adjustable headstrap, comfortable liquid foam ear seals. Bone conduction microphone on headstrap. 24dB NRR.