Electric, electronic, computer devices in the nature of wireless communication devices for voice, data or image transmission for hands-free, multi-user communication, for use in hostile, outdoor, confined or noisy environments
Electric, electronic, computer devices in the nature of wireless communication devices for voice, data or image transmission for hands-free, multi-user communication, for use in hostile, outdoor, confined or noisy environments
Electric, electronic, computer devices in the nature of wireless commu...