Aimed at professionals who need flexible yet fail-safe wireless solutions that are supremely comfortable to wear and intuitive to use, the DW Pro2 sets new standards in listening and wearing comfort. Boasting an enviable range of attractive and innovative Sennheiser technologies, this double-sided headset allows users who demand flexible yet fail-safe wireless solutions to perform at their best. Features Unique Premium Design Crafted for comfort High Comfort Wearing Style Perfect adjustment to your ear for a full day wearing comfort Intuitive User Interface Mute microphone and adjust volume up or down Boosted Productivity Ultra noise-canceling microphone filters out unwanted background noise Sennheiser HD Voice Clarity Wideband sound for a more natural experience Full Workday Talk Time 8 hours in wideband sound mode and 12 hours in narrowband sound mode Intelligent Fast Charging 50% in 20 minutes gives you 4 hours talk time Long Distance Wireless Range Up to 55 m in typical office building. Up to 180 m in line of sight Protected hearing ActiveGard technology protects against a acoustic shock and sudden sound surges Desk Phone & Soft phone Switch from one communication channel to the other. One touch on the base station to select the channel you wish to call from Intuitive & Easy pairing For desk sharing and phone conferencing GAP compatible (Headset) Headset: Connect to base Base Station: Connect to desk phone and softphone Microsoft Communicator compatible