Link2Home Weatherproof (IP54) Smart Wired DoorbellThe Link2Home Smart Doorbell enables you to answer your front door from anywhere. Get instant alerts when someone presses the doorbell button or the motion sensor is activated. It emits its own exterior audible tone and can be easily linked with the Link2Home Bell Chime (sold separately) for inside your home. Secure connection, the camera utilises 128 bit SSL encryption. With full duplex, 2 way audio, you can hear and talk with your visitor using the