RA05 Ringer Amplifier with Strobe Light
This telephone ring signaler has a loud, 120 dB audible ringer and a bright strobe light that flashes when there is an incoming phone call. It connects between the telephone and wall phone line.
Ringmax TEL008 Amplified Phone Ring Signaler
The Ringmax allows you to customize the telephone ring to make it easier to hear. You can quickly and easily increase the volume, then set the tone and "warble" to a pitch that’s best for you. Four specially selected tone settings emphasize those frequencies easiest to hear.
WR100 Loud Telephone Ringer
The WR100 Loud Phone Ringer is a small portable device that notifies a user of an incoming phone call with a ring up to 25+ decibels.
This model features built-in surge protection and does not require any battery or power cord to operate.