The TV Connector is an easy-to-setup and easy-to-use device that can be used with Phonak Audéo Marvel and Audéo B-Direct hearing aids for top rated streamed sound quality. Also works with Costco Kirkland Signature 9.0 KS9 Unitron Tempus and Discover models (Stride and Moxi) If you are unsure about the compatibility with Phoank or Unitron please ask before you purchase. Phonak Marvel and Unitron hearing aids can connect up to two TV Connectors