The Razor Slim XTRM series features a cooling headband, a Noise Reduction Rating (NRR) of 21 dB, and utilized sound-activated compression (SAC) of 0.02 seconds. SAC is a special electronic circuitry that will compress gunshots and other loud noises to a safe level, without completely shutting the noise off. This allows you to hear range commands or communicate with your hunting partners, even when shots are fired around you. Includes 2 AAA batteries.
