The Link 260 USB adapter works with any Jabra Quick Disconnect (QD) headset. Jabra Link 260 extends the capability of your Jabra corded QD (Quick Disconnect) headset, provides call control and enhances the audio. The USB adapter, enables you to use your Jabra desk phone headset together with your soft- phone. Digital Signal Processing (DSP) technology evens out the audio stream to ensure clear sound on both ends of the call.