PELTOR Protac Shooter Headband Headset, Green

35 mm listen-only stereo input for connection to external devices (cell phone, two-way radio, Ipod) Auto power off, the headset will turn off after 4 hrs of non-use to save battery Environmental microphones for level-dependent hearing protection and ambient listening Low-battery warning to inform you when to change batteries Professional-Quality Hearing Protection (26dB NRR) To reduce corrosion caused by sweat and moisture, the electronics are located in a separate compartment of the cup Voice guided menu system for ease of use and adjusting settings