***** **********Best Quality Guranteed. ***** 2.4GH z Wireless TechnologyThis keyboard and mouse set adopt advanced 2.4GH z wireless technology with 49 ft wireless range, allowing you move your mouse and keyboard freely. Please charge the product for 12 hours before using the product (activate the built-in battery). *****Power SavingIt adopts the industry's top chip, which is 5 times power-saving than ordinary keyboard and mouse combo. It can support Windows 2000/ME/XP/Vista/7/8/10, Mac OS X*****Green BacklitGreen backlight makes your keyboard look cool at night. Fn+Scrlk=turn on/off the backlight, Fn+Pgup=luminance+, Fn+Pgdn=brightness-. There are 3 levels of brightness.
After 2 minutes without using the keyboard, the keyboard enters sleep mode, automatically turns off the backlight, and presses any key to wake up. *****With USB ReceiverThis keyboard and mouse share one USB receiver, which means that you can save one USB port for your computer. The receiver is placed inside the battery spa