Never Miss Someone At the Door!Doorbell Ringer Flasher - For Deaf and Hard of Hearing peopleHas switches for ring/flash or ring only or flashing only notificationDoorbell button lights up to let you know its sending the signal to the flashing unit so your visitors don't have to figure out if its working or not. Works great in noisy places eg factories, warehouses etcFlashing unit assists notification in a quiet environmentSmall & portable so you can take it with you when you travel Light flashes over complete unit making it very easy to see from any part of the room.Great for homes, apartments, offices, flats, work cubicles, work stations, anywhere you need a flashing doorbell system. Does not interconnect, suitable for use as 1 unit only Doorbell button uses 1 x AAA battery inclFlashing unit uses 3 x AA batteries not inclEasy to fit with double back sticker for doorbell button incl3-1/2" high X 2-3/8 wide X 1-1/4" at base
