Rosewill RS-OW813-BK SONAS Over Ear Headphones with Octa-Drive Surround Sound, Black Audio Cable with Mic and Pickup Button to provide microphone, music control function, take/end call function PC Extension Cable included to provide Mic In + Line Out for PC Octa-Drive Surround Sound Technology- Utilizing a total of 8 driver units to provide precise audio positioning Connector: 3.5mm Cord Length: 4.9 ft.