The HGA-TP allows the user the benefits of the SPEECH ADJUST-A-TONE when listening to telephone, television, radio, tape recorder and/or computer sound card.
The SPEECH ADJUST-A-TONE is MORE than amplification. Six adjustable frequency ranges can adapt to each person’s particular hearing loss and thus aid in speech discrimination as well as amplification.
While listening to television, radio, tape recorder or computer sound card, the hearing impaired user wears a headset and can adjust the volume control and frequency controls for optimum clarity. ( A neck loop or bone conducting transducer can also be used). Others in the room are not disturbed.
More information: http://www.s5electronics.com/hga-tp.html