Feature: 1. Three Track Modes: The USB mouse dither has three dithering modes, Track 1 (default), Track 2, and Track 3. This product has a memory function, and the next boot will follow the same trajectory as the previous one. 2. Undetectable: This mini Mouse Mover is made of an aluminum alloy shell, which is very lightweight and portable. When connected to a computer for the first time, it will be recognized as a "USB composite device,". So don't worry about IT being recognized by IT software as unknown/unsafe devices, unless your computer does not allow access to the mouse. 3. With Power ON/OFF: This mouse shake has an on/off/mode switch button. Press and hold the ON/OFF switch for 4 seconds, and the indicator light comes on, indicating that the product has been turned on; Press and hold the ON/OFF switch for 4 seconds again, and the indicator light goes out, indicating that the product has been turned on/off. 4. Plug and Play: This mouse mover does not require any software/programs to be installed. Simply plug it into the USB interface of the computer to avoid repeatedly plugging and damaging the USB interface of the computer. 5. Strong Compatibility: This mouse shake is suitable for various applications such as online meetings, online games, online reading, remote connections, and so on. Compatible with most operating systems on the market, such as for Win XP/Win 7/Win 10/forMac OS/Android, which keeps your computer active to maintain your for Microsoft team, for Skype, for Webex, for Lync, and more. Specification: Material: Aluminum alloy Interface: USB Compatibility: Supports for Win XP/Win 7/Win 10/forMac OS/Android systems Size: About 21x15x6.5mm/0.82x0.59x0.25inch Net weight: 4g color: Black Package Contents: 1 x Mouse Mover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the itemin the picture a little different from the real thing. The measurement allowed error is +/-