3M PELTOR ProTac III Headset 31 dB Hard Hat Attached MT13H221P3E

Features a hearing protector to help protect against harmful noise, whilst allowing ambient sounds to be heard, built in level dependant function allows the wearer to hear ambient noise such as conversations, machine sounds and warning signals, 3.5mm stereo jack to connect to your mobile phone or two way radio to hear the call right in your ear, auto power off turns headset off after 4 hours on non-use, voice guided menu.