Infrared night vision: Built-in six infrared lights and a smart infrared sensor provide clear, high-resolution video in low-light conditions during the day and night Battery use: The doorbell uses 2*2600 mAh rechargeable lithium batteries. After being fully charged, it can be used continuously for 3 to 5 months. There is no need for frequent charging. Storage method: This wireless video doorbell will save all recorded videos to the cloud (free for 30 days, does not support local storage) Network connection: Supports 2.4GHz WiFi network connection, use "" APP to connect, friendly App operation can help you use it quickly Multi-person sharing: This video doorbell allows up to 8 users to connect to the video doorbell, and up to 3 users can view real-time images at the same time. The main account has the permission to delete other users