B007BGSI5U Howard Leight by Honeywell Impact Pro High Noise Reduction Rating Sound Amplification Electronic Shooting Earmuff for Indoor and Covered Ranges or Other Extremely Loud Shooting Environments (R-01902)

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HIGH NOISE REDUCTION RATING (30 NRR): Designed for handgun and pistol shooters looking for high NRR; perfect for indoor ranges, covered ranges or other extremely loud shooting environments
AMPLIFIES AMBIENT NOISE UP TO 4X: Built-in directional microphones amplify range commands and other ambient sounds to a safe 82 dB, providing more natural listening and enhanced communication
BLOCKS HAZARDOUS NOISE: Actively listens and automatically shuts off amplification when ambient sound reaches 82 dB; passively blocks out noise at 30 dB
COMFORTABLE, SECURE FIT: Rubberized pressure points prevent gunstock scratching; super deluxe padded headband features telescopic height adjustment for a secure and comfortable fit
INCLUDES: 3.5mm connection cord for MP3 players and scanners; includes 2 AAA batteries; automatic shut-off feature engages after 4 hours to help save battery life; approx. 350 hours battery life
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