Brand new, unused item. Features: Headset with noise-canceling microphone that transmits sound clearly This headset is equipped with a noise-canceling microphone. It uses a directional microphone to reduce surrounding noise. Because it can transmit your voice clearly, it is ideal for voice chats such as Skype and online meetings. The illustration shows a single-ear headband type. Semi-enclosed/dual-ear headband type headset, comfortable even for long periods A dual-ear headband headset that allows you to hear the other person's voice clearly. With a stable fit and soft ear pads, this semi-enclosed type is comfortable even for long periods of use. Volume/mute can be adjusted at your fingertips Includes a controller that allows you to adjust the volume and mute the microphone at your fingertips. There is no need to operate the computer each time. Size adjuster function Comes with a size adjuster that allows you to adjust the band to fit your head size. Connection method Compliant with RoHS standards Complies with the RoHS directive, the Restriction of Hazardous Substances in electrical and electronic equipment, which has been in effect in the EU since July 2006.