Razor Series Slim Shooter Folding Ear Muff in Kryptek- Two omni-directional microphones- Noise Reduction Rating: 23dB- Ultra low-profile rubberized cups- Full dynamic range HD speakers for clear, balanced sound- Low noise/frequency tuned for natural sound clarity- Independent volume controls- Sound dampening composite housing- Sound activated compression 0.0002 second reaction time- Audio input jack- Recessed volume control knobs- Comfortable headband with metal wire frame- External battery door- Power Source: 2 AAA batteries included