Wireless Doorbell, Twin Wall Plug-in Cordless Door Chime Kit 2 Receivers 1 Push Button (Self-Generating Power)

Self-powered Wireless Door Bell with 2 Receivers & 1 Transmitter (Remote Push Button)? Advantage: Not need to pair the doorbell kit. Just plug in the receivers to electrical outlet and use.Quality approved self-powered doorbell: Our wireless door bells have passed CE, RoHS, FCC Certifications.Receiver Size: 80mm * 80mm(3.15in * 3.15in)Push Button: 48mm * 85mm(1.88in * 3.34in)Waterproof Door...