Connect the video doorbell to the doorbell chime and get an instant alert in your home when someone rings the doorbell, the chime plugs into any wall outlet, you can place it anywhere in the house your home. Works with 433 MHz RF transmissions Supports 60 melodies and 5 volume levels Music with light to mention someone rang it no battery required, connect to any outlet in the room. Features Features: Wireless Voltage: 5V Category: Doorbells This doorbell chime supports 433 connection protocol The quick tone can be installed in any socket on the board, plug it into the socket, it can work with your doorbell camera. When installing use, please make sure the installation location of your doorbell can re receive wifi signals and the signal strength is strong. Voltage: 5V Connect the video doorbell to the doorbell chime and receive a instant alert in your home when someone rings the doorbell, the chime plugs into any wall outlet, you can place it anywhere in your home.