Loops with stereo plugs may be plugged into either mono or stereo jacks. Phonic Ear FM receivers, however require a mono plug, due to special wiring of the jack to allow use with either mono or stereo headphones. No wiring necessary. When door bell button is pushed a 50-150 watt household bulb flashes three times, long enough to get your attention. Door bell button contains battery operated radio transmitter.
Chime unit contains receiver and has socket for lamp.
It plugs into any convenient wall socket. Range is 50 feet. The DV light timer may be used by gourmet cooks who cannot hear stove oven timers and those who can not hear the laundry buzzers. It may also be used to waken light sensitive sleepers, time long distance telephone conversations, even serve as a medication or an appointment reminder. Please specify the manufacturer of the processor and equipment with which it is to be used.