Feature:1. Multi Functions: Wireless doorbell camera has sound changing function, adaptive infrared night vision function, video intercom and HD night vision, which is very practical.2. Video Call: WiFi doorbell camera supports video call, which can easily deal with visiting guests. When someone presses the doorbell, the doorbell will push the notification to the mobile phone, and the owner can enter the mobile phone video dialogue interface.3. High Capacity Battery: Ring doorbell camera wireless has a built in 800mAh high capacity battery, which can stand by for 365 days. Say goodbye to the trouble of frequent battery replacement.4. Voice Fonts: Smart video doorbell adopts the upgraded voice changing function. When you are alone at home, you can use the voice changing intercom function, which is safer.5. Infrared Night Vision: WiFi doorbell camera adopts adaptive infrared night vision function, which can automatically switch between day and night modes, and clearly see the night visitors.Specification:Item Type: Wireless Doorbell CameraMaterial: ABSType of Battery:1 x 800mah Lithium Battery (Built in)Wireless Connection: 2.4G Wireless WIFI Connection is Supported.Charging Interface: Type CCharging Time: 1.5HNight Vision: SupportVideo Call: SupportVoice Fonts: SupportMusic: 38 Songs.Package List:1 x Wireless Doorbell Camera1 x Doorbell Internal Machine1 x USB Cable1 x User ManualNote:1. Please turn on your mobile phone Bluetooth, WiFi, and allow all permissions of the APP before you can use the product normally.2. Please use this product in an environment with good WiFi signal, and try not to stick it on the metal door.3. This product does not support 5G WiFi4. Before the doorbell is installed, please conduct a normal function test at the location where it will be installed to ensure that this product can be used normally. Please tear off the lens protective film after installation.5.Shipment with built in battery.