Products designed to assist the Deaf and Hearing Impaired. Includes assistive listening devices, hearing aids, cochlear implants, infrared/personal amplification systems, audio/FM loop systems, FM amplification systems, TV amplifiers, TV decoders, visual signaling and alerting systems, tactile alerting systems, telephony and accessories, text telephones, TDDs/TTYs devices, adapted phones, etc. Does not generally include products intended to facilitate computer access and usage (see Computer Access Aids).