100% Wire-Free and Solar Powered: The solar security camera comes with a built-in high-capacity rechargeable battery, fully charged through the solar panel or USB cable.The camera will be in a sleepy mode until detect motion, it will work for about 30 days after fully charged. APP Remote & 360° View: Wireless WiFi camera is compatible with EseeCloud (phone app) and "Hiseeu" system, Alexa. 120-degree field of view and PTZ feature provide you with no blind spot surveillance, real time viewing monitoring no matter wherever you are.