Single ear headset allows the freedom of hearing beyond your telephone or laptop when in use. USB connector is universally compatible with any USB compatible device such as laptops, desktops, or tablets. Microphone boom is 180 degree adjustable for right or left ear headset use, high fidelity and noise cancelling. Soft, leatherette ear pads for hours of comfortable use. Controller for mute, volume up and volume down. Cord length is 6 foot, ideal for home, office or on the road. Plug and play, no software required. No batteries required.