Built-in directional microphones amplify range commands and other ambient sounds to a safe 82dB, providing more natural listening and enhanced communication. Actively listens and automatically stops amplification when ambient sound exceeds 82dB. Features low profile earcups for firearm stock clearance; adjustable headband for secure fit; compact folding design for convenient storage. At the range or on the hunt, the Howard Leight Impact Sport Electronic Shooting Earmuff keeps you protected from hazardous noise and connected to your environment. It carries a Noise Reduction Rating (NRR) of 22dB.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }