LinDon-Tech Super Mini Portable Keyboard Flexible Wireless Keyboard Silicone Roll-up Bluetooth Keyboard for Tablet, Smartphone, Laptop, Built-in Rechargeable Lithium Battery (Black) Super Mini SizeThis keyboard is small size, length 10", width 3.5", MUCH SMALLER THAN STANDARD SIZE KEYBOARD. MAIN KEY SIZE IS MUCH SMALLER THAN ADULT FINGERS. Soft KeyboardKeyboard is made by silicone material, flexible, foldable and Roll-up. Super light weight, put in your bag or pocket after roll up, you can take to anywhere you want. Silent KeyboardSoft silicone material, key in words silently, can be used for library work and class indoor environment. (Different using experience compair with normal keyboard because of the material.) Rechargeable BatteryBuilt-in rechargeable battery, can be charged 500 times. updated micro-USB connector. Multi CompatibleCompatible with Windows/Android/IOS, can be connected to All iPads and iPhones, Windows, Android tablets and smart phones with bluetooth funtion.