Support OS: WINXP/VISTA/WIN7/WIN8/WIN10. Package Listing: 1 x mini 2-key keyboard,1 x switch-puller,1 x 5 feet long USB data cable ,2 x mechanical switch,1 x User Manual. In addition to standard macros, it can do many other things, including simulating a mouse. Function: such as Shortcut keys, Cut, Undo, Redo, Select all, Play, Pause, Volume, Switch song, Forward, Backward, Custom script, etc. You can control the light color and gradient mode of the case you want through the software. Hot-swappable mechanical switch ,Allowing you to enjoy the fun of building a customized mechanical keypad. Support ergonomic design,alloy ABS material,OSU keypad gaming keyboard,Type-C interface and RGB cool backlight.