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 facilitates communication with your colleagues. Should the sound reach harmful levels the electronics react immediately and take down the level to max. 82 dB(A). Especially good in environments with impulse noise, or varying levels of noise. Good attenuation at medium, high and low frequencies. The headband with fork attachment and the wide sealing rings provides uniform headband pressure and comfortable use.