Features: Built-in slimmest wirelessBTkeyboard,provide quicker and more comfortable typingexperience. Detachable design,the protective case can be used separately when removing the keyboard,more convenient.Also you can use the keyboard separately. Built-in large capacity lithium battery,it worksfor approximately 60hours per full charge,the standby time up to 100 days. Lightweight and compact design for maximum portability and convenience. With touchpad function,the touchpadsupport Android,Windows and IOS system.(Only support IOS 13 and above system) Waterproof and dust proof design keep your protective case clean. Specification: Model: TY3310 Color: Black BT Version: BT3.0 Connection Range: 10M Standby Time: 100 Days Work Time: 60 Hours Charge Time: 4-5 Hour Battery Capacity: 400mAh Battery Life: 3 Year Package Size: 27*19*3cm/10.6*7.5*1.2in Package Weight: 586g/20.7oz Package List: 1*Protective Case 1*Keyboard 1*USB Cable 1*User Manual