This device prevents your computer from going to sleep by automatically moving the mouse cursor slightly. Operation confirmed. Body only. 【Product Description】 【ON/OFF & Mode Selection Button】Compared to most USB mouse movers on the market, the Meatanty mouse jiggler combines two buttons, "ON/OFF switch" and "mode selection," into one device, making it easier to operate and significantly improving the user experience. Also, you don't have to repeatedly plug and unplug the mouse jiggler, which prevents damage to the USB port. 【Digital Display & Protective Cover】Unlike other brands, the Meatanty mouse jiggler provides users with a USB port protective cover to protect the device and make it easy to carry. Our mouse mover device is equipped with a digital display that allows you to check if the device is working. When you start the mouse jiggler, the display lights up with a rotating blue circle. When you press the mode button to switch tracks, it will display track 1, 2, or 3 and return to the previous rotating state. 【Multi-Track & Memory Function】Our USB mouse mover can achieve three optional tracks with its unique mode button. The cursor will automatically move randomly with different trajectories and amplitudes depending on the selection. (Special introduction: Mode 3, even if you select this mode, it will not affect normal typing, program clicks, website clicks, etc.) Also, this mini mouse mover simulator is designed with a memory function, so the next time it is turned on, it will move according to the previous trajectory.