3M MT53H7P3E4400-EU PELTOR LiteCom Headset 33 dB PMR 446 MHz Hard Hat AttachedCode: 659227000 3M PELTOR LiteCom Headset, 33 dB, PMR 446 MHz, Hard Hat Attached, MT53H7P3E4400 EU Colour: Blue Each Hearing protector with built in communication radio for "hands free" short range communications with other LiteCom headsets and comms radio devices on the same frequency 8 channels and 38 sub channels allow users to communicate individually using the same channel An auxiliary input also lets you connect a mobile phone or external com