Lync OptimizedBluetooth 3.0 Class 1HD Voice - High quality audio for crystal clear conversations Enjoy high-definition sound with HD Voice and get crystal clear intelligible communication (A2DP) Up to 100m RangeRemote Call Control - Answer and end calls on the Jabra audio device with seamless integration between your phone and headset. With a Jabra wireless audio device you can control your call even when you are away from your desk. for Softphone