Comfortable hearing protection with level-dependent monitoring. The microphones on the front of the cups pick up ambient noise so you can hear what's going on around you and make it easier to communicate with your colleagues. If the sound reaches a harmful level, the electronics react immediately and reduce the level to the maximum level. 82 dB(A). Especially good for impulse noise or environments with varying noise levels. Good attenuation at mid, high and low frequencies. Fork-locking headband and wide sealing rings ensure even headband pressure and comfortable use.