The Evolve 30 II Microsoft optimized USB-A headset connects to your computer's USB or to your mobile device's 3.5mm port so you can make calls with HD sound quality. The headset's in-line call controller has large buttons and LED indicators to pick up or end calls, control volume, or simply mute the line. It is fitted with a noise cancelling boom microphone and its 7ft. USB cable can be adjusted to a 3ft. 3.5mm cable. 2-year limited warranty. Black.