Simple and beautiful appearance, comfortable touch feeling, easy to take, set tablet PC into the case then it can work. Moveable keyboard can be convenient for you adjust the tablet OC view angles to wide or narrow, several different angels for you choose. Case hold tablet PC can be rotated in 360 degrees, convenient to adjust, full of flexibility. Main feature: ? Soft touch and extreme quiet. ? Elegant outlook ? Durable cover ? State of art technology ? User friendly ? Built-in rechargeable Li-ion battery ? Standby time: 20 days ? Battery rechargeable times: 500 times ? The keys on the keyboard can be hit up to 5 million times ? Charging cable included Compatible with Mac OS and Windows system