Peltor’s PowerComPLUS two-way radio headsets come with 22 preprogrammed UHF channels, and can be reprogrammed with up to 30 channels between 462-467 MHz. Able to transmit up to two miles, PowerComPLUS also has 38 sub-channel privacy tones to avoid unwanted frequency chatter, a rechargeable NiMH battery pack, and voice-activated transmitting or push-to-talk button.Aearo/Peltor, Indianapolis, IN.