Note:This keyboard fit iOS & Android & Windows Tablet,it is need depending on your tablet operating system,switching Wireless keyboard system, if you want realize switch,you need press the fn key and system keys at the same time. Feature: 1.2014 New Design,2 in 1 Detachable Design, Folio Stand Case Cover + Detachable 3.0 Wireless Keyboard For 10.1inch Lenovo Tab M10 HD (2nd Gen) TB-X306X Tablet (Not fit Lenovo Tab M10 M10 Plus) When you want use the keyboard,this is keyboard case,When you travel or do not want use the keyboard, you can use the keyboard stay at home,This is a very practical. 2.Durable, stylish & streamlined protective case designed for Lenovo Tab M10 HD (2nd Gen) Tablet 3.Removable wireless Wireless 3.0 ABS keyboard(Support Wireless 2.0). 4.Foldable back stand converts case tablet display stand for easy viewing. 5.Special function keys,like Sleep, lock, Slideshow home, etc.but the function cannot be realized the mute key(Note:Because it is designed for AndroidIOSWindows Tablet, but the Tablet have many different brands,therefore the individual keys may be on different brand plate can not realize the function). 6.Built-in rechargeable lithium battery. Specifications: 1.Built-in Lithium polymer battery capacity: 200mah. 2.Voltage:3.7V Power charge connecr. 3.Input: Mico USB charge 5v. 4.Standby time:20days appx. 5.Continual working time:80 Hours. 6.Charging time :2.5-3hrs. 7.Operating temperature:-20 degree - 55 degree. 8.Srage temperature:-40 degree - 70 degree 9.Working distance :10 meters Package included: 1x Detachable Wireless Wireless Keyboard(Tablet not include) 1 USB Charge Cable 1x User Guide