Monaural DECT headset for desk phones Answer/end calls, mute microphone and control volume directly from the headset 2-in-1 wearing style (headband and ear hook) ActiveGard technology protects you from acoustic shock by preventing sudden sound surges Wideband sound for HD voice quality and a natural listening experience Range: up to 180 m with line-of-sight connection, up to 55 m in office building Talk time: 8 hours Includes: power supply, headset, ear hook, quick start guide