Jabra / GN Netcom - 935-15-503-205 - Jabra PRO 935 Microsoft BT Dual Connectivity for Softphones & Mobile Devices Wireless Bluetooth Headset with Bluetooth 4.0 Optimized for Microsoft Office Communicator 2010 Noise-Canceling Microphone Up to 12 Hours Talk Time & Up To 300' Range Connects To: Cellphone / Computer