Wirelessly monitor and control compatible solar charge controllers via Bluetooth.Protection Grade: IP54 Connects to our user-friendly smart phone App, Renogy DC Home, to keep track of your system Embedded exclusive Bluetooth chip with high efficiency and low energy consumption Bluetooth 4. 2 and BLE technology provides fast and uninterrupted communication Powered directly through RJ12 communication port; Signal range up to 82ft; Two LED lights indicate the power and Bluetooth connection condition.Power source type: Solar Powered