Dual, electronic, buffering microphones automatically reduce sounds above 85 decibels to protect your hearing from gunfire, but amplify low level sounds to help you hear range commands. Independent volume controls allow accurate directional pinpointing of even the smallest noise. Low profile ear cups won’t interfere with gunstocks. Adjustable, Cool Max headband wicks away moisture away from your head. Collapsible design folds down for easy storage. Mfg: Radians SPECS: Dark gray housing, black ear pads and head band. NRR 23 dB. Powered by three (3), AAA batteries, included.