The unique digital sound circuit eliminates the sharp sound clip typical of most level dependent hearing protectors on the market. Many people find this sound unpleasant and disturbing. The electronics of the Peltor SportTac hearing protection react immediately and protect your hearing from loud impulse noises. The system responds so gently that you rarely hear the clip when the protection is activated. Just like the other level-dependent hearing protection from 3M, the SportTac hearing protection also improves your hearing and you actually hear better with the hearing protection than without it. With the Peltor SportTac you can also connect your hunting radio directly to the headset. * Specially designed for hunters and shooters * Smooth active volume function that eliminates abrupt noise shutdown * Replaceable shells make it easy to change color * Connects to hunting radio * Equipped with automatic shut-off function * Folding replacement shells