COMPATIBILITY: The Discover D315 adapter works with the following models: Plantronics cs50, cs55, cs351n, cs361n, cs70n, cs540, cs530, cs510, cs520, C054, C052, Jabra pro 920, gn9125, gn9120 or Sennheiser D10 wireless headsets. HOW IT WORKS: Simply plug any of the compatible models into the D315 adapter, like you would to a desk phone. The other end has a USB cord that then plugs into your computer and you now have a computer headset. Simple as that. INLINE CONTROLS: Easily increase/decrease your hearing volume or mute/unmute the microphone from the D315 adapter. DOES NOT ENABLE REMOTE CALL ANSWERING. Calls will need to be answered from the computer, then you can walk wirelessly. PLUG AND PLAY: No additional software is required Incudes USB-A and USB-C connectivity Connects any RJ9 wired or wireless headset to work with your computer for calls, meetings or audio The Discover D315 universal USB adapter will convert your Plantronics, Jabra or Sennheiser wireless desk phone headset to work with a computer! That means if your company switched over to softphones or computer applications and no longer uses a desk phone, instead of replacing your headsets, you can add the Discover D315 adapter to connect your existing headsets to a computer. With inline controls, the D315 allows you to mute/unmute calls or increase/decrease volumes directly from the cord. The D315 adapter is compatible with the following models: Plantronics cs50, cs55, cs351n, cs361n, cs70n, cs540, cs530, cs510, cs520, C054, C052, Jabra pro 920, gn9125, gn9120 or Sennheiser D10 wireless headsets.