???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. ???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. ???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). ???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! ???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. ???Important TIPS 1???2 versions of the wireless mouse keyboard combo are packaged randomly. Version 1: Press Fn+ Scroll to turn on/off backlit, Fn+PgUp/PgDn to adjust brightness. Version 2: Fn + Right Shift to turn on/off backlit or adjust the brightness. ???Important TIPS 2???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 the ON/OFF toggle.