The mechanical membrane keyboard features a 98-key design that saves space but retains the necessary letters numbers and function keys. This enables users to improve the gaming fun and work efficiency.About the base function: 1?26 Anti-ghosting Keys:It can contain most game keys ensuring that you can quickly activate sReduces and give precise instructions making it easy to play various games. 2?12 Multimedia Shortcut Keys:The combination of Fn + shortcut keys makes it easier and quicker to control multimedia music browsers etc. and you dont need to use the mouse to perform multiple steps. 3?Volume Knob Control Button:Press the knob to turn the sound on/off you can easily and blindly control the volume during intense games. 4?Type-C Wired Connection:The USB-C and cable separation design makes storage more convenient plug and play and provides stable transmission. 5?Comes with a USB cable in length of 1.5m / 59 inches.No driver needed plug and play.Compatible with Windows 10/8/7/Vista/XP Mac OS. About the keycaps & keyboard layout design: 1?Ergonomic design:This compact keyboard has six rows of keycaps and four-level height. It is designed based on ergonomics and conforms to the rules of finger movement making typing comfortable and not tiring. 2?Adjustable anti-slip stand:The three-stage adjustable feet can provide different heights of your preference.There are 4 rubber feet at the bottom which can effectively prevent slipping and reduce vibration making the keyboard stable and not shaking. 3? ABS Keycaps:The keycaps have clear engraving and a frosted texture for a nice touch.They are durable and not easy to fade even if wet by sweat. 4?Arc keycaps:The keycaps are designed with a micro-arc shape to fit the curvature of your fingers bringing you a comfortable typing experience. 5?UV Printing Technology:The keycaps use UV printing which makes the letters clear and bright durable and not easy to fade and harmless to human health and good for earth. How to Change Backlit Setting: Rainbow back light is adjustable: high light mode and breathing mode. Different lighting effects can show different comfortable office experiences or strong gaming atmosphere. 1?[FN] +[ DEL] --- Turn on / off the backlit. 2?[FN] +[ DEL] --- Switch light mode. (Rainbow highlight mode & rainbow breathing mode) 3?[FN] + [?] / [?] --- Increase / decrease brightness. 4?[FN] + [?] / [?] --- Increase / decrease breathing speed.