USB Mini 2 Key Keypad 2-Key Copy Paste Keyboard OSU Keypad HotSwap One Handed Mechanical Gaming Keyboard with USB Cable for Accounting Working or Rhythm Games

[Customized settings] The default functions of OSU keyboard are "copy" and "paste". You can set shortcut keys, cut, undo, redo, select all, play, pause, volume, switch songs and other functions, forward, backward, custom scripts, etc. through the software. The 2-key mechanical keyboard supports saving your commands on the device. Once programming is complete, there is no need to reset it when changing computers.. [Note to Mac users] If you need to set it in MAC, please customize the settings in Windows before you can use it on Mac.

After the software is set up, there is no need to open the background, just close it (requires a USB-C cable to work).