There are many audio transmitters on the market, but HearLink PLUS has some unique features that set it apart as the transmitter of choice for assistive hearing.
It supports ListenThrough technology to allow important ambient sounds (like a conversation with a TV viewing partner, or the doorbell) to pass through on top of the streamed audio. During incoming phone calls the audio stream will be stopped and then automatically resumed when the call is completed. It supports up to two BeHear headsets simultaneously.