?Best Office Gift?It is the best choice for your friend's Birthday, Christmas or New Year gift list. ?Important TIPS?How to use this computer keyboard mouse combo? First, charge them for 3 hours when you received them. Second, plug the USB dongle into your computer. Third, turn on them with their ON/OFF toggle. Press Fn + Right Shift to turn on/off backlit or adjust the brightness. ?Sleep Mode for Saving Power?Keyboard sleeps after 30 mins of inactivity, press any key to wake. Mouse sleeps after 1.5 mins, move or click to wake. Both came with an ON/OFF switch. The power indicator will flash when the power is low. ?Reliable Wireless Connection ?One USB receiver for both keyboard and mouse! Upgraded chips and 2.4GHz RF technology ensure a stable and lag-free connection up to 33ft. Control your computer from your bed or couch. It's super easy to use—no drivers needed!. ?Rechargeable and Long-Lasting?One charge for enduring performance. Wireless keyboard standby: 365 days. The wireless mouse standby: 270 days. For 9-5 jobs, the keyboard battery lasts at least 4 weeks (backlight off). ?Quiet and Comfortable Typing?Soft membrane keys for making typing quiet and smooth. With the tilt legs, you can find the perfect typing angle for maximum comfort. The wireless mouse feels just as clicky but makes 90% less noise. No more worrying about disturbing others while working from home. ?LED Backlights?The rainbow colors and adjustable brightness create a cool ambiance and make the keyboard mouse combo full of energy. Plus, the illuminated characters make it a breeze to type even in the dark. NOTE: The keyboard and mouse share ONE USB receiver.