Specification: Royal KludgeModelRK71Keys Amount71 KeysColourBlack, WhiteSwitchBlue Switch, Brown Switch, Red SwitchConnectionBluetooth 3.0 + USBMaterialABSVoltage12VSize327 * 101 * 36mmWeight800gSystem SupportWindows / Android / for Mac OSBattery Capacity1000mAhBacklitRGB BacklitFeatures:1.Small size super compact mechanical keyboard with 71 keys. With separate arrow keys, suitable for office and home use. The 71-key compact layout makes it ideal for reducing space.2.18 RGB backlight modes, 8 monochrome backlight modes, 5 full colour backlight modes. These patterns are more enjoyable when you're playing games or typing at night.3.The keyboard has a rechargeable lithium-ion battery, the standby time is up to 360 hours and 10 hours for continually working time, it takes 3 hours to fully charge.4.Wireless mode, 1 minute no operation, keyboard backlight automatically turns off; 5 minutes no operation, the keyboard goes into a standby mode; 10 minutes no operation, it enters deep sleep mode. You can press any key to wake up the keyboard.Package Includes:1 *Royal Kludge RK71 Mechanical Gaming Keyboard1 * USB Cable