Instructions For Use Neckloop Telecoil Coupler The neckloop is designed to magnetically couple the audio output from a Williams Sound unit into a hearing aid equipped with a telephone coil. It will also work with tape players, TV s, and any device which has a 8-16 Ohm audio output through a 3.5mm jack. The Neckloop works only with hearing aids equipped with a telephone coil (T-Switch). USING THE NECKLOOP 1. Place the Neckloop over your head and around your neck as in the picture above. 2. Slide the bead upwards to a comfortable position. This helps keep the neckloop in optimal position for coupling with your hearing aid.