????COOL RGB BACKLIGHT - The keyboard has a rainbow color backlight and 3 adjustable brightness. The mouse has 15 switchable lighting effects. Light-up keycaps and letters help you to use it easier in low light. ????LONG BATTERY LIFE - Rechargeable keyboard and mouse can be charged by supplied USB C charging cable. The smart auto-sleep function and on/off switches help you to save power. Leave for 30 mins, the keyboard goes to sleep, leave for 90s, the mouse will sleep. ????2.4GHz WIRELESS & ADJUSTABLE DPI - Plug and play, easy to use. Keyboard and mouse wireless use ONE USB receiver allows wireless connection up to 10 meters(33 ft) without any driver. The mouse with 3 DPI levels (1000/1500/2000) Optical tracking technology. ????COMFORTABLE TYPING & SILENT CLICK - The foldable stands offer a tilt angle for a better typing position. The effortless crater mechanism under each key makes typing more comfortable. The mouse and keyboard are almost silent, don't worry about disturbing others. ????UNIVERSAL COMPATIBILITY - This backlit keyboard mouse combo works with your PC, Desktop, Laptop or Notebook. Compatible with Windows, Linux, Chrome and Mac. (Note: Multimedia keys may not be fully compatible with Mac OS systems). ????WARRANTY - We promise a one-year worry-free warranty and 60 days no reason money back or replacement. If you have any questions about this wireless keyboard mouse set, please feel free to contact us. ??????????????????????????????: The wireless mouse and keyboard combo are randomly packaged in 2 VERSIONS. Version 1: press Fn+ Scroll to turn on/off backlit, Fn+PgUp/PgDn to adjust brightness. Version 2: Fn+ Left Shfit to turn on/off backlit or adjust the brightness.