Awen+&reg; Z Tactical H50 Electronic Sound Pickup Headset Noise Reduction IPSC Hunting Headset with 3.5mm Jack Mobile Phone U94 PTT for Iphone Samsung HuaWei HTC LG ZTE Blackberry Cell Phone Z Tactical headset widely used by Special Forces and IPSC / CS Designed for active combat and high noise applications Z latest electronic talk-thru headset combines the most sophisticated surround sound listening electronics with a new slim-line profile cup design Headsets have dual ear-cup microphones to let wearers hear ambient sounds 360 degrees along with the capability to suppress gunshots and other high impact noises Amplifier for the surrounding sound,operated by 1x AAA battery(Not included) / each cup with waterproof battery cap