Doorbells Intercom

1111MicrosoftInternetExplorer402DocumentNotSpecified7 8 磅Normal0Specifications Model Wireless Voice Intercom Doorbell System Indoor Unit Dimensions 3 54 x 2 75 x 5 78 inches Outdoor Unit Dimensi more→ons 2 16 x 1 18 x 4 15 inches Operating Temperature 4°F to 140°F Power Supply Rechargeable batteries Volume Levels 8 adjustable settings Chimes 4 selectable options Features 1 Extended Range Communication Experience seamless communication over long distances making it ideal for various environments such as homes teahouses hospitals and for elderly care 2 Full Duplex Functionality Enjoy clear simultaneous two way communication ensuring that you can talk and listen without inte…