The FIELD.Phonic Ear's Induction system for TV listening. 
This one has a volume control along with bass and treble settings. Designed to provide optimal listening conditions for hearing aid users whose hearing aids have telecoils. If you successfully use telecoils,  this is a simple, and maintenance free system to use. No receiver necessary. Just switch your hearing aid to its telecoil mode.

(If you don't have hearing aids or your hearing aids do not have telecoils, a loop receiver can be used.)

A teleloop system consists of an amplifier and a discrete wire (the loop) that runs along the perimeter of the room. When the teleloop amplifier is hooked up to an audio source such as a TV or radio, the sound is received directly by the user's hearing aid without the need for an additional receiver. 
 
FIELD Features:

• Volume control
• Tone control
• Dual AGC function (eliminates loud, sudden sounds, and ensures dynamic, equalized sound) 
• Automatic loop length matching.
• Simple to install.

Specifications: