▲ Outstanding ambient noise attenuation due to Digital Adaptive Noise Reduction (DANR) ▲ Ear pads with extra soft leather and viscoelastic filling ▲ Replaceable leather headband with fontanelle recess ▲ Audio box to connect iPhones, mobile phones or music players (supplied with 3 connecting cables) ▲ Powered by two mignon batteries (HS 800 Digital and HS 800 Digital Rotor) or via the on-board power supply system (12 - 36 V) with the supplied 3-pin male XLR cable (HS 800 Digital) – delivery includes 3-pin socket ▲ Auto Mute – automatic volume reduction (muting) of phone or music player when intercom signals are received (selectable function) ▲ Automatic switch-off function when not in use ▲ Balanced sound with reproduction precision for best intelligibility of speech and excellent sound ▲ Mono/Stereo selection switch ▲ Noise-compensated microphone with adjustable gain ▲ Integrated dual volume control ▲ Ear cups in carbon design with metal bezels ▲ Rugged headband made of spring steel with moderate clamping force ▲ Light weight ▲ Modular construction for easy servicing ▲ Supplied with padded carrying case ▲ Five-year warranty