Impact Sport Sound Amplification Electronic EarmuffAt the range or on the hunt, the Howard Leight by Honeywell Impact Sport Sound Amplification Electronic Earmuff keeps you protected from hazardous noise and connected to your environment. These earmuffs carry a Noise Reduction Rating (NRR) of 22 in both on and off mode. When the electronic ear protection is switched on, they employ built in directional microphones that amplify ambient sounds to a safe 82 dB. This allows you to hear important commands