Telephone Audio Adapter
This nifty little interface allows you to connect your telephone to the audio input on a personal FM system such as the Bellman Domino Pro and Classic (2.5mm connection), Phonak Zoomlink, Smartlink or Easylink (3.5mm connection). You can also use it to connect to the input on a field loop amplifier or any other system with a 2.5mm or 3.5mm socket..
The idea is the incoming callers voice is sent through your FM system or hearing loop directly to your hearing aids. This improves your ability to understand on the phone with further volume adjustment and the facility to hear the caller in both ears.
And you know what they say, two ears are always better than one!