Keyboard Specification: Number of Keys: 87 Key Built-in Battery Capacity: 3000 mAh Rainbow Backlight Size: 14.17*5.12*1.18 inch 3 Brightness Level(The 2nd level is default) How to Control Backlight: FN+Scroll Lock Key= Turn on/ off Backlight; FN+PgUp=Increase Backlight Brightness; FN+PgDn=Decrease Backlight Brightness Supported System: Windows XP, WIN 7/8/10, MAC OS 2.0. 12 Multimedia Key: FN+F1=Multimedia Player; FN+F2=Volume -; FN+F3=Volume +; FN+F4=Mute; FN+F5=Previous Song; FN+F6=Next Song; FN+F7=Pause/Play; FN+F8=Stop; FN+F9=Home Page; FN+F10=Mailbox; FN+F11= My Computer; FN+F12=Favorites Mouse Specifications: Number of Button: 6 Button Built-in Battery Capacity: 800mAh Adjustable 3 DPI:800-1600-2400 7 monochrome color auto switching breathing backlight Note: 1 The keyboard and the mouse share one USB receiver, which place in the bottom of the mouse, insert the receiver into the computer USB port, they will auto connect. 2 Please make sure you turn on the keyboard and mouse before using, and they are not away from the receiver over 10 meters. 3 For better using, please make sure the keyboard and mouse is full charged in their first use. 4 The keyboard will auto enter sleep mode if no operation in 2 minutes, and press any key can wake it up. 5 The keyboard and mouse can be charged by using DC 5V adapter, but cannot support quick charger adapter. Package List: 1* 87 Key Wireless Keyboard 1*Wireless Mouse 1*Mouse Pad 1*Charging USB Cable 1*User Manual