Product Description Color Size: 8 inch Black, 8 inch White, 10 inch Black, 10 inch White 1. [Let it be bright] Elegant blue LED backlight, 7 different colors ( deep blue, soft blue, light green, soft green, red, purple, cyan), makes your typing much more enjoyable and awesome. The backlight turns off automatically when idle to save power when needed most. 2. [Compatible] Fully functional for all four major operating systems: IOS / Android / MacOS / Windows and with system-specific function keys for each operating system . All Bluetooth-enabled devices such as tablets and smartphones can be easily paired and given quick access to common functions such as volume, playback controls, copy, paste text and more. 3. [Comfortable Quiet Typing] The whisper-quiet, low-profile keys offer a whole new level of comfort at your fingertips. Plus, keep all your most-used functions and media controls closer than ever to Windows hotkeys. Keyboard with scissor tread construction can be used continuously for more than 3 million times. 4. [Zinc Case Portable Keyboard] Slim ultra-slim design for easy portability. makes this wireless keyboard extremely portable and the perfect travel accessory. 5. [Rechargeable Battery] The built-in rechargeable Li-polymer battery offers a one-time charge of more than 48 hours. Bluetooth 3.0 can be connected quickly. After the first connection is successfully established, it will be automatically connected next time you turn it on.