Impeccable in everything, by far better than what is available on the market. Updates come directly to the mobile through the application, I also subscribed, so it keeps videos and photos in its cloud. Ideal for a single-family house. It is connected with the cables of the existing doorbell, it has 2 screws that secure it to its base, making theft difficult, something that other similar devices do not provide. With this type of connection, there is no need for charging.