Hearing protection with built-in analog two-way radioRadio communication at the 446 MHz PMR frequenc y range.8 channels on the 446 MHz Private Mobile Radio (PMR) network38 subchannelsThe waterproof noi se-canceling microphone features voice command (VOX) for hands-free operation. Voice-guided menu sys tem. Auto power off functionAccurate battery level indication.Headband model. 1 km range3M™ PELTOR™ LiteCom headsets are hearing protectors with a built-in pre-programmed two-way radio and a built-in noise-canceling microphone. They are designed to allow you to communicate effectively despite the ha zardous noise exposure of harsh environments.3M™ PELTOR™ LiteCom headsets allow you to communicate e ffectively while protecting your hearing in noisy environments. Our headsets feature a built-in, pre -programmed two-way radio for headset-to-headset communication.Eight channels are availableon the 44 6 MHz Private Mobile Radio (PMR) network, while 38 sub-channels allow users to communicate individua lly on the same channel. The noise-canceling microphone features voice control for hands-free operat ion. The rugged design is intended for harsh environments, while the accurate battery level indicato r and simple, easy-to-use settings let you use the headset all day long.