Headsets designed for use with two-way radios, intercom setups, remote audio transmitters, and similar networked transceivers; Remote audio transmitters; Wireless-compatible push-to-talk systems primarily consisting of a wired push-to-talk microphone and a headset for remote interaction with integrated hearing protection; all the foregoing specifically engineered to withstand high-temperature fire emergency environments and designed to fit under fire and rescue helmets worn by fire and rescue personnel operating in tactical environments.
Electrical and Scientific Apparatus