Features: This tiny mouse jiggler makes it easier- to operate and greatly enriches user experiences. Avoiding repeatedly plugging and unplugging the mouse mover, that really saves your USB port from damage. this mouse jiggler provides users with USB port protective cover, which can protect the device and easier- to carry. An ideal- companion for those working at home-, it simulates mouse movement and prevent computer from going into sleep while you work or play Wide compatibility for windows-, androids, mac-OS system, plug-and-play Specifications: Item:USB Mouse Mover Size: appprox 20x14.5x6mm/0.79x0.57x0.24in Material: ABS+Metal Connector: USB Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurment. Package includes: 1 Piece x USB Mouse Mover