Use this kit if you will be connecting an existing FM system, such as one from Phonak or Oticon, to your Streamer™ system. This kit includes a 2.5mm-to-3.5mm cable, a 3.5mm-t0-3.5mm cable and a USB digitizer with both mic-in and audio-out jacks. You will only use one of the cables, and which one to used depends on the type of wireless system you are using. The USB digitizer includes an audio-out port that is used to amplify any speech generation features that you may be using with your Streamer system (such as to support a person that is non-verbal). Note that you will need to provide your own Wireless FM receiver.