Logitech Solar Keyboard Folio for iPad 2 and iPad (3rd/4th generation) (920-003907) Built-in light-powered Bluetooth keyboard for iPad 2, 3, 4 . Powered by indoor and outdoor light Protective folio: Protects the front and back of your iPad 2, 3, 4 wherever you take it. Auto on/off: Instantly wakes your iPad 2, 3, 4 when you open the folio and sleeps when you close it Multi-view stand: Holds your iPad 2, 3, 4 at the right viewing angles for either watching videos or typing