Kensington KeyFolio Professional Plus Backlit Bluetooth Keyboard Case for iPad Air (K97250US) Updated, removable ultra-thin backlit Bluetooth keyboard, optimized for the touch typist Magnetic clasp secures when iPad folio is closed, and attaches to back of the folio when in use Premium texture and durable construction Magnetic construction enables multiple viewing angles Folio provides corner and edge protection Integrated stylus holder Keyboard battery provides 960 hours of working time and up to 180 days of standby time (Backlit keyboard provides slightly less, depending on usage) Includes USB to Micro-USB cable to recharge keyboard from your computer's USB port