Tomoko 104 Key Gaming Keyboard with Multi-Color Backlight, USB Cable Attached with Key Cap Puller Fit for Gamers We offer you a key cap puller for free. With this gadget, you can pull your key caps easily when you want to clean your keyboard or frequently change your key caps. The colorful backlight provides ambience when you play games. It is convenient and energy-saving to use it at night. There are various lighting patterns. According your requirements, you can adjust the lighting patterns even you can define it by yourself. The brightness and the flash frequency can be adjusted as well. Mechanical switch is engineered to withstand up to 50 million times keystrokes, so youll enjoy the advantage for longer. The LED backlight adds fantastic ambience when you play games. There are 9 predefined lighting patterns which is controlled by key combination of FN and INS and 8 game lighting modes switched by key combination FN and number keys (1~9) . This keyboard is suitable for most computer system including Windows10,Windows 8, Windows 7, Mac OS X, Windows XP, Windows VISTA and so on.