| Large Image For use with an existing doorbell. Wireless doorbell chime works with your existing doorbell to put the chime sound where you can hear it best. Comes with a transmitter and a remote chime receiver. Wire the transmitter box to the low-voltage terminals on your doorbell chime box. Plug the remote chime receiver into an AC outlet in the room where you need to hear the sound. When your doorbell is pressed, the trransmitter send a signal to the receiver and the low frequency chime sounds in that location. No batteries needed. Use as many receivers as necessary. Five year warranty.
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