Quick Disconnect(QD) feature enables you to walk away without removing the headset. Comfortable Headset: Super lightweight USB headset with adjustable headband to fit all head sizes, high quality and soft leatherette ear cushion enhance all-day wearing comfort. In-line Volume Control and Mic Mute, You could Adjust the Volume of the Headset or Mute from a Conversation if it is inconvenience while Talking.External intelligent mute button with LED indicator. USB Binaural Headset With Microphone, Makes it Plug and Play with your Laptops PCs Computers Mac.You just simply plug this modular plug into the USB on your computers and it's ready to be used.