The razor pro digital muff features a high performance digital circuit which delivers blazing fast reaction time ensuring optimum hearing protection.It has hi-gain omnidirectional microphones, superior clear digital sound, audio jack, and recessed volume control knobs.The muffs included two (2) aaa batteries.Type: Electronic EarmuffColor: Gray Camo Ear Cups w/Black BandNrr: 23 dBQuantity: 1Style: Over the HeadBattery: AAAMaterial: Polymer