Nillkin Bumper Go Keyboard Case The Nillkin Bumper Go Keyboard Case is a multi-purpose tablet protective cover with a removable backlit keyboard, an Apple Pencil slot and a continuously adjustable tablet angle. In continuous operation, the keyboard will last you up to 55 hours. With the backlight on, the battery life is reduced to 5 hours. material: TPU + PU protective cover with built-in removable keyboard compartment for Apple Pencil battery life in continuous operation up to 55h (Up to 5h with the backlight on) smooth adjustment of the angle of the tablet sliding camera protective cover reinforced corners the possibility of leaning the tablet vertically and horizontally practical ears for easy carrying