2PK Battery Operated Wireless Doorbell, Model ES01065B, 7.68 in W, None – Smart
Add both a RGB visual and an audio signal to your doorbell system with the Battery Operated White Wireless 2PK Doorbell, Model ES01065B, 7.68 in W, None – Smart System. The receivers are capable of pairing with up to 20 remotes and can transmit up to 900 feet in open air connectivity.