This isn't a ringer, per se. It attaches to your landline phone to allow you to turn off your phone ringer and still be alerted, via blinking light, that someone's trying to get ahold of you. Perfect for parents of little babies, parents of teenagers who call late, and parents who just want to take a little nap, so could you please keep it down for Christ's sake Tommy?
The light has four LEDs and comes with a phone cable. Available now for $19.95.