D 10 Phone is a streamlined single-sided wireless DECT headset connecting directly to your desk phone. Designed for office professionals, D 10 Phone provides you with Sennheiser Voice Clarity, all-day wearing comfort, and excellent sound around the office. Features include:-Single Connectivity: Connect directly to your softphone/PC-Sennheiser ActiveGard: Sennheiser's innovative and patented hearing protection technology against acoustic shock-Full Work Day Talk Time: 8 hours in wideband and 12 hours in narrowband sound mode-2-in-1 Wearing Style: choose between ear hook and headband-Fast Charging: re-charge 50% of the battery in 20 minutes-Noise-Canceling Microphone: filters out unwatned background noise for crystal-clear conversations