The Sennheiser USB CC 1x5 CTRL Controller Spare Cable is specifically designed for use with Sennheiser SC 135 USB and Sennheiser SC 165 USB headsets. It features in-line call control - Answer/end/redial call, volume up/ down, microphone mute and 3.5mm Socket to USB-A.
•USB spare controller cable
•Compatible with Sennheiser SC 135 USB and Sennheiser SC 165 USB headsets
•In-line call control
•Answer/end/redial call, volume up/ down, microphone mute
•3.5mm Socket to USB-A