Product descriptionColor size: 8 inch black, 8 inch white, 10 inch black, 10 inch white1.[Let there be Light] Elegant blue LED backlight , 7 different colors(deep blue, soft blue, bright green, soft green, red, purple, cyan) making typing that much more enjoyable and awesome to look at. Backlight will auto turn off when idle to conserve power for when it is most needed.2.[ Compatible] Fully functional to all four major operating system: IOS / Android / MacOS / Windows, and features system-specific function keys for each operating systems. Any Bluetooth supported devices such as tablet, smartphone can easily paired and gain quick access to common functions, such as volume level, playback control, copy paste text, and more.3.[Comfortable, quiet typing] The whisper-quiet, low-profile keys bring a whole new level of comfort to your fingertips. What's more, keep all your most-used functions and media controls closer than ever Windows-dedicated hot keys. Keyboard with scissors kick construction can be used more than 3 million times continuously.4.[Portable Keyboard with Zinc body] Sleek, ultra-slim design makes for easy portability. makes this wireless keyboard extremely portable amp; the perfect travel accessory.5.[Rechargeable Battery] Built-in rechargeable Li-polymer battery provides 48More than hours single charge. Bluetooth 3.0 can be connected quickly, after the first connection is successful, it will be automatically connected the next time it is turned on.