Noise, is always the biggest challenge to hearing impaired people. Distance also dramatically reduces intelligibility, as does reverberation and echo. FM systems have been designed specifically to pick up speech signals directly at the source and transmit them, clearly and without distortion, directly to the wearer’s ear. FM systems created a basis for optimum speech intelligibility, independent of the acoustic surroundings. Through FM system, wearer can also enjoy music and television through wireless transmission.

Another major complaint from hearing impaired people is whistling telephone usage. Integrated Bluetooth technology in FM systems enables a bi-directional digital link between wearers’ hearing instruments and their Bluetooth mobile phones. By pair up the system with mobile via Bluetooth, all incoming calls would be automatically directed via FM system to the hearing aids, and conversation could be carried on by speaking directly into the FM systems.