Product Features Rainbow backlight Driver-free, "FN + \ ¦" combination key can quickly switch the 12 models rainbow backlight effects Colorful typing and gaming experience You can adjust the brightness and speed of the backlit according to your preferences 61 key compact gaming keyboard with ultra-thin, lightweight, and simple design, saving your desktop space and easier to carry 60 percent wireless gaming keyboard with 1000mAh rechargeable battery, which can provide up to 10 hours of wireless use The on/off button at the bottom can save battery power during transportation or when not in use Friendly power saving mode, if there is no button operation for more than 1 minute, the backlight is off, and press any button to wake up High-Speed Response Ree Switch It provides higher tactical feedback and clearer "click" sound than normal keys It can provide you with accurate and comfortable responses Compatibility with Mac and Windows Compatible with Windows 8/10, Android, IOS, and MAC systems Specifications Product Model: STK61 Size: 11.42 x 3.94 x 1.57 inches Buttons: Wired Full Key Without Punch, Any 6 Key in Bluetooth Mode Without Punch Contact Life: 50 Million Times Wired: 1.6 Meters, Type C Cable Wireless: Bluetooth 5.0 Battery: Lithium Battery 1000 mAh System Requirements: Windows 2000/XP/Vista/7/8/10 & Linux Product Included 1 x STK61 Mechanical Keyboard 1 x Type C Cable 1 x User Manual