Made of high-quality material, durable, and stable to use. This allows you to connect all types of funny things as input. It is an invention kit that makes your computer that anything is a keyboard. The kit uses high resistance switching to detect when you have made a connection even through materials that are not . The ATMega32u4 connects to your computer using the human interface device () protocol which means that it can as a keyboard or a mouse. No need to , no need to connect lines, no need to install software, just need to connect USB to use, simple! Specifications: Item Type: Main Control Board Kit Communication interface: USB Colour:As shown Material:PC+Metal Package Contents: 1 * Controller Board 10 * Clips 1 * USB Cable 10 * Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.