Features 1.Magnetic removable keyboard design, it convenient for carrying and using. 2. Stand function, the keyboard case build in holder, it can help you use your tablet as traditional laptops, easy to use. 3. Special function keys: Sleep / Lock / Slideshow/Home/volume etc. Specifications Built in Lithium polymer battery capacity: 350mah Voltage: 3.7v Input: Micro USB charge cable: 5v Standby time: approx. 30 days. Continual working time: 60-90H Charging time: 2.5h-4.5h Working distance: 10 meters.