Feature: 1. Plug and Play: 2 button gaming keyboard with Type C USB interface and driver free. After set up on for Windows 7 and above (excluding all in one and server), it is plug and play on for Linux, for OS X, for Windows, for Pi, phone and tablet, etc. 2. Memory Function: 2 key gaming keyboard has a memory function, so you don't need to set it up again next time. After setup, other computers can also be used. One computer can be plugged into multiple keyboards and all of them can be used normally. (OTG adapter cable is needed for phone and tablet, etc.) 3. Custom Configuration: Mini keyboard supports a variety of functional modes, each button can be set to a different functional mode, do not affect each other. Four modes: keyboard, mouse, multimedia, multi key mode. You can replace the keycaps and crosshair base by yourself, suitable for cherry keyboard keycaps. 4. RGB Keyboard Macro Keys: RGB LED backlighting can be individually adjusted in the configuration software for key action display mode and on or off. The macro keyboard can be set up for one key macro operation. Pressing a single key is equivalent to pressing multiple individual keys in succession. The total length of each keystroke macro is 34 digits. It is also possible to add intervals, such as one key passwords. 5. Portable and Mini: Portable mini keyboard with ultra small size of 1.89x1.18x1.18 inches, effectively saving desktop space. The mini keyboard and 1.5m Type C USB cable can be plugged and unplugged at will, making it easy to carry in the office. You can connect the keyboard (plug and play) and keyboard to the same computer at the same time, they will not interfere with each other. Specification: Item Type: USB 2 Key Mini Keypad Material: ABS Size: Approx. 4.8x3.0x 3.0cm / 1.9x1.2x1.2in USB Cable Length: Approx. 1.5m/4.9ft Compatible Interface: USB C Macro Space: 34 Bits RGB Light Effect: Support Support: Partial BIOS Operation Support: Wake up From Computer Sleep Suitable For:for Windows, for OS X, Linux, for Pi, Computer, Phone and Tablet (If A USB C Port Computer, Phone or Tablet Uses This Keyboard, A Separate OTG Cable Is Required.). Package List: 1 x 2 Key Mini Keypad1 x USB Cable1 x Manual Note: Manual measurement please allow some error.