Description: Detection : Video can make you view door without opening it. Live video recording can be activated right when it detect human ,the camera can sent a alerts to your phone by for Tuya APP. 720P Images: 720P resolution, 155° wide angle lens and infrared function make the to record the movement of the front door clearly at day or night. Batteries & Wire-free & Stable WiFi Connection: Powered by 18650 batteries (Not Included), easy to install, wifi connection support 2.4G WiFi. Easy Installation: Easily setup the video by connecting to wifi via for Tuya app. Audio & Storage: Built-in microphone speaker system can provides conversation and through the APP. Note: The Indoor Chime need to be purchased separately. Size Chart: Size: approx. 16x5.7x3.3cm / 6.29x2.24x1.29 inch Package Includes: 1 Piece Wireless Video Camera 1 Piece Adhesive Sticker 1 Set Installation Screw Package 1 Piece Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful line shopping!