As a headset with a closed design, the HS 400 Signum provides perfect noise attenuation for a safe flight. Enjoy music from your MP3 player with beyerdynamic sound!

▲ Ambient noise attenuation of approx. 30 dB
▲ Single U-174 Helicopter Plug w/Coiled Cord
▲ Compact audio box to connect mobile phones or music players (supplied with 3 connecting cables)
▲ iPhone compatible (connecting cable included)
▲ Integrated dual volume control
▲ Mono/Stereo selection switch
▲ Noise-cancelling microphone with adjustable gain
▲ Balanced sound with high reproduction precision for best intelligibility of speech and excellent sound
▲ Auto Mute: Automatic volume reduction of phone or music player when signals from the intercom occur (selectable function)
▲ Battery status indication by LED
▲ Made in Germany
▲ 5-year warranty
▲ Rugged headband design made of spring steel with soft headband pad
▲ Lightweight (approx. 11 oz. without cable)
▲ Modular construction for easy servicing
▲ Supplied with padded carrying case