Features:</strong><br /> ABS material, 4 buttons, palm keyboard, can set 4 function keys simultaneously.<br /> Its four keys can be defined as any key on the keyboard or key combinations, string, mouse function, string end + any key and other functions through its supporting software.<br /> The key values can be modified through supporting software, which only supports Windows system. If you need to use the keyboard on Linux or MAC, you need to set the key value on the Windows system, then it can be used on Linux, MAC, simple and convenient.<br /> Small and lightweight, easy to carry. USB interface, plug and play.<br /> Widely used in various intelligent control games, instrument control, factory testing, piano keyboard testing, hospital image scanning, as well as complex keyboard shortcuts such as PS/win7/PADS.<br /> <br /> <strong>