Endless Solar Battery Life - Our smart blinds feature a built-in 2000mAh lithium battery, and includes a solar panel for endless environmentally-friendly charging. Endless Solar Battery Life - Our smart blinds feature a built-in 2000mAh lithium battery, and includes a solar panel for endless environmentally-friendly charging. Precise Alignment Control - SwitchBot Blind Tilt uses a customized high-precision motor to allow for blind adjustments to the closest 2°. It also includes a built-in light sensor to automatically adjust to help you maintain a constant light intensity depending on the light outside. Multiple Control Methods - Use our app or use timers to open and close your smart blinds when in Bluetooth range. And when paired with SwitchBot Hub Mini(sold separately), you'll be able to use smart assistants such as Alexa, Google Home and Siri to control your blinds remotely even when you're outside of the house. Control via Groups - When in Bluetooth range you can control up to 4 units of blinds with one button through our app, and can set unlimited groups when used together with SwitchBot Hub Mini (included).