The Neckloop Headset with Mic for Cordless phone
The Neckloop Headset works with the telecoil circuit, It is worn around the neck like a necklace, 95% of western hearing aids have a telecoil circuit.. Telecoil circuits receive magnetic sound. The telecoil circuit allows the hearing aid wearer to hear extremely clearly even with loud background noise.

First the Neckloop Headset receives sound from a mobile cell phone. This sound is then transmitted magnetically by the Neckloop Headset to the hearing aids telecoil circuit. And talking to the mic on Neckloop Headset to make conversation