feature: Multi-device and multi-system compatible, support Win XP/Win 7/Win 10/Mac OS/Android system Small and mini, does not take up space, easy to carry Three track modes for you to choose Instructions: 1. Insert the usb interface 2. Press and hold for 4 seconds to power on, and the display light is on 3. Single press to select the mode you want Specification: Product name: Anti-computer sleeper Product material: aluminum alloy shell Product net weight: 2g Product color: black Product size: 21*15*6.5mm Support Win XP/Win 7/Win 10/Mac OS/Android system Product features: Various trajectory adjustable + mode memory package 1*mouse jiggle 1. We maintain a high level of responsibility for our customers and are as responsive as possible to the needs of our guests. 2. If you have any questions about our products, please contact us in time, we will solve it for you immediately! 3. Due to the different display devices, the color of the products may have some discrepancies, hope you can understand. 4. Due to the different photo shooting angle, the actual shape and size of the product may not be consistent with the picture, please refer to the description of the product size, everything shall be subject to the physical object received. 5. Thank you for your purchase, we sincerely wish you happy every day.