Howard Leight Impact Sport Electronic Passive Earmuffs - Protect your hearing from harsh noises with the Impact Sport Earmuff. It has the ability to block damaging sound to a safe 82dB but will also amplify sound like range commands and normal conversation for maximum awareness and safety. The automatic 4 hour shutoff will conserve the battery life of the 2 included AAA batteries. The earmuffs are water resistant and include a leatherette headband for maximum comfort. Blocks sound to a safe 82dB Single power and volume control knob Features Air Flow Control Technology Automatic 4 hour shutoff AUX jack for MP3 players and scanners Low profile design to not interfere with shooting Black leatherette headband Water Resistant 2 AAA batteries