Bring exceptional audio quality to contact center conversations with the Plantronics SP-USB20 USB audio processor. The USB audio processor delivers audio connectivity for SP11-QD and SP12-QD headsets with PC-based softphones via the USB port. Ergonomically designed inline controls provide volume, mute on/off (with LED indicator). Great for contact center applications and, paired with a noise-canceling SP11-QD or SP12-QD headset, enables softphone users to conduct clear and natural customer interactions. The Quick Disconnect™ feature between audio processor and headset allows you move away from your phone without removing your headset or disconnecting the call.