It is Solar powered, USB, battery powered, 3 ways for power supply.The solar panels in the camera can only work properly with no less than one battery, because the charging principle is the battery charged by solar panels powers for the camera, which means the camera cannot work normally when there is only solar panel but without battery. Feature: Compatible with Android/IOS smart phone. Support HTTP/DHCP/TCP/UDP network security protocols. Your personal information stays safe on App and servers. 1080P Full HD Image Bright Night Vision 1920*1080P resolution ensures crystal clear image quality. See everything in great detail. Sharper and clearer than those of 720p cameras. Advanced night vision with 9 built-in infrared LED lights. Infrared lights automatically turn on when light goes dim. Display bright black and white images in the dark. Never miss a bit day or night. Motion Detection Alert Notification Camera has built-on PIR detector and it triggers alert upon movement detection. Send alert notification to your phone. You will be the first one to know. Protect your home and loved ones easily and effectively. You must insert a microSD card to have detection. Detection information stay safe on your microSD card and the App.