Bring your communication skills to perfection: Adjust the volume continuously or mute the microphone with one simple move. The Noise Cancelling takes care of the rest and provides for a clear voice transmission. lenght: 0,6m color: black standard: USB 2.0 shielding immunity: double shielded inner conductor: 2xAWG 24 2xAWG 28 copper configuration: 2x A plug - Mini B 5 pin