"Responding to customer requests for a call chime that operates via a switch, here is my Switch-Adapted Cordless Call Chime. It's inexpensive, has a 'stated' 75 foot range. The receiver/Chime plugs into a wall socket. The transmitter is switch-adapted." RJ
My Call Chime (Switch-Adapted) is innovative, to say the least, but that's why you're drawn to it in the first place.