The Evolve 75SE stereo is optimized for Microsoft and features a boom microphone with superior Active Noise Cancelling (ANC) technology. It has accessible answer/end call, mute, ANC on/off and volume control buttons. The headset comes with a Bluetooth USB-A adapter. Weighing 117g, it's able to charge in 2 hours and it can operate continously for up to 18 hours in a 30m range. 2-year limited warranty. Black.