This extra receiver works in conjunction with other wireless doorbell chime units. The unit plugs into any indoor standard electrical outlet and allows the chimes from the transmitters to be heard. Multiple units can be placed in multiple rooms up to 150' from transmitter.
Receiver can play up to 13 sounds depending on which transmitter is used.
For more information please see one of the following kits which includes this Wireless Chime Receiver: STI-32500, STI-32500, STI-32600 and STI-46100.