Listen Technologies – FM Assistive Listening System – The most advanced device of its type, with full microprocessor controlled ransmitters and receivers. Smart Tuning, adaptive noise reduction, auto battery charging all built in. For 72 and 220 MHz.
Gentner Communications FM Assistive Listening System – Provides high quality audio to the Hearing Impaired in churches, schools, theaters and other public facilities. First ALS available at affordable prices, first made in Asia.