EASY OPERATION: The set is equipped with USB cable and caliper to ensure that the 2 key keyboard is easy to operate and program, convenient and practical. MULTI FUNCTION: The default copy and paste function, you can also use shortcut keys, cut, cancel, select all, play, pause, volume, forward and backward functions. In addition to standard macros, it can do many other things, including simulating a mouse. GOOD TEXTURE: With fine workmanship, the keyboard has a smooth appearance, and its rounded corners make it more safe and reliable to use. Allowing you to enjoy the fun of building a customized mechanical keypad. EASY TO PROGRAM: The programming application has understandable English translation. In addition to the standard macro, it can also simulate the mouse. INSTRUCTION SAVING: Support to save your instructions on the device. After programming, you do not need to reset when changing the computer.