Communication and Hearing Protection

Aearo (manufactures communication & hearing protection under the Peltor name)
ARC (Astra Radio Communications). Manufactures specialized microphones for law enforcement and surveillance operations)
David Clark (manufactures hearing protectors and an extensive line of wired communication systems)
Otto Communications (manufactures two way radio accessories for covert communications and surveillance)
Peltor (manufactures hearing protectors and wireless communication systems)
Sensear (manufactures electronic hearing protection with bluetooth communications for cell phones)
Sigtronics (manufactures wired communication systems for aircraft and emergency vehicles)