Available in single or double ear styles, Systems 902 and 905 permit 2-5 users to talk and listen to each other simultaneously. Operation is in 900 MHz, license-free, ISM band for distances up to 1,000 ft. Microphone conditioning circuits, such as compression and noise gating result in circle of silence. Systems use standard 9 V radio batteries, and warning is given if batteries are too weak for dependable service.


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