SAFE SHOOTING HEARING PROTECTION: Earmuff actively listens and shuts off loud impulse noises like gunfire to a safe 82 dB; Noise Reduction Rating (NRR): 22 SITUATIONAL AWARENESS: 4X sound amplification enhances low level frequencies like range commands, conversation and forest sounds; 2 high-gain, omni-directional microphones allow you to identify source of sound; recessed placement reduces wind noise LOW-PROFILE, COMFORTABLE FIT: Air Flow Control Technology allows for a slim, low profile ear cup to ensure firearm stock clearance; padded, adjustable headband provides a comfortable, custom fit; compact, folding design for convenient storage ENERGY EFFICIENT, EASY OPERATION: Automatic shut-off feature after four hours saves battery (350-hour lifespan); easy battery compartment access; AUX input jack for music players and scanners; single power/volume control knob KIT INCLUDES: Shooting earmuff, 2 AAA batteries; 3.5 mm connection cord; replacement ear cushions available