Jrifedptry MK321BT 3-Key Mini Customized Mechanical Keyboard Blue Switch USB+BT Dual-Mode Connection for Game Multimedia,White Easy Install

With anti-slip pads at the bottom, no need to worry about keyboard slipping. You can customize the button to achieve keyboard function, mouse function, multimedia function, character string function, game function and macro definition function. USB+BT4.0 dual-mode connection, easy to switch according to your needs. Designed with mechanical blue switches, strong paragraph sense, crisp sound. The button curve fits ergonomic design, comfortable to type. This product provides key definition setting software based on system, which can be used in various systems after setting.(Note: If you use Linux or , you need to set it up on first, then plug the foot switch into your device and run it to use)