Support mobile phone message push when the doorbell is pressed, Ding prompt Support real-time viewing of video outside the door and two-way intercom Ultra-low power consumption, long battery life, and low battery reminder. Support cloud storage and TF card local storage (TF memory card is not included in the scope of delivery) Support infrared night vision. Tuya Smart Smart Life Mini Wireless Video Doorbell, with Camera, Wide Angle Smart Visual WiFi Rechargeable Security Doorbell, Two-way Intercom, HD Night Vision, Video Call, Doorbell Sharing, Mobile Phone Remote Alert Check, Suitable for Home, Apartment, Offic. Note: When the doorbell is successfully paired with Dingdong, there may be interference and noise when the doorbell device and your phone are on the same frequency in the same place, but it will not affect the use. The correct usage scenario is when a visitor presses the doorbell, the Dingdong device is used in a different location, and the doorbell is intended for the visitor's use, not to press and answer/reply at the same time. APP:Smart Life Support doorbell sharing Note:When adding a device, make sure that Wi-Fi is available and connected to the internet. Colour:B:Black Material:Plastic Package Contents: 1 * Doorbell Camera 1 * Ding Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.