LED BacklightsThe 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 TypingSoft 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-LastingOne 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 ConnectionOne 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