1.【ERGONOMIC DESIGN WITH PALM REST】: one-handed keyboard is designed with ergonomics which can reduce the fatigue.Keyboard with large hand palm rest area,allows you to use it with less strain. New button layout, fast and flexible operation,perfect for game playing. 2.【HIGH QUALITY】: ABS material, each button is controlled by a separate switch, paragraph sense of keys is strong enough to produce suitable special touch and enhance the game experience for game players. Each buttons have 10 million times life. 3.【Backlight】: LED Backlight modes can be adjusted.It's very cool, under the night, adding a sense of mystery.Also it's convenient for you to use in low light environment. Backlight can be adjusted to the different colorful patterns. 4.【COMPATIBLE SYSTEM】: USB Connect, Plug & Play, No driver required, Compatible with Windows XP/ VISTA/ WIN 7/ WIN 8/ WIN 10/ Mac OS X / PS4 / Xbox One. With this one-handed gaming keyboard at your side, you'll be able to take your gaming to entirely new height. 5.【Note】: The RGB colorful version has a key macro recording function, and the three-color mixed color version has no macro recording function. There is only a single color mixing. The backlight function can be switched on and off, and there is a multimedia function.