3M™ PELTOR™ LiteCom Plus Headsets are our robust hearing protectors with a built-in analogue two-way communication radio, noise cancelling dynamic microphone, Lithium-Ion battery and level dependent functionality for ambient listening. Specifications: auto power off and clear battery status indication; available in 16 channel PMR 446 MHz version with 121 sub-channels; external connection jack allows connection of a mobile device or another two-way radio; available in headband and helmet mounted models. Use to help you communicate efficiently in high noise environments.