Mouse Jiggler Constant mouse activity causes computers to not go idle, thus preventing sleep or screen savers from activating. No new software is installed or required. Mouse Jiggler registers as a Human Interface Device (HID). LED - A single LED will count off the number of minutes Mouse Jiggler has been working. Fast Version Constant large motions makes it obvious at a glance to the screen that Mouse Jiggler is working. Slow Version Constant small motions allow you to use the computer while Mouse Jiggler is working. Who uses Mouse Jiggler? Computer Forensics Investigators use Mouse Jiggler to prevent password dialog boxes due to screen savers or sleep mode. IT Professionals use Mouse Jiggler to prevent password dialog boxes due to screen savers or sleep mode after an employee is terminated and they need to maintain access to a computer. IT professionals or office workers use Mouse Jiggler when downloading/installing programs to keep overactive screen savers from interfering. Presenters using Powerpoint (often on a computer they don't own) pop a Mouse Jiggler into a USB port in order to avoid annoying screen savers while they're presenting. Few can resist watching the reaction of a coworker encountering the fast Mouse Jiggler for the first time.