The FS2019U foot switch is made of metal, and the foot switch can bear a weight of more than 150 kg,which is strong and durable. The device is equivalent to a standard USB keyboard and mouse with one button. The buttons can be defined as any key value,button combination, mouse, multimedia function,game handle function and string printing function on your keyboard through the setting software. The value is stored in the device, and no additional software is required during the use of the device. FS2019U foot switch is widely used in hospital image capture, game control, instrument control, factory machine equipment control, piano keyboard testing and other occasions. Provides button definition setting software based on Windows system. After setting, you can use it in the following systems: Dos, Win 2000, Win XP, Win vista, Win 7, Win 8, Win10, Linux, Mac, Android. (Note: If it is a Linux or MAC system, you need to modify the button definition in windows, and then plug the switch into Linux or MAC to use) Software use: Insert the foot switch correctly into the USB port of the computer, run the FootSwitch software, and download the software, we will get the following pop-up window, as shown in our display: size:11.8 x 7.6 x 2cm Material:metal colour:black Package Contents: 1 x switch Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.