1. General office games, multiple uses 2. Plug and play, no driver required, high compatibility 3. Three-speed DPI (800DPI-1200DPI-1600DPI) accurate positioning, gaming optical chip 4. Mechanical micro-movement, sensitive and durable, zero delay, quick rebound 5. Skin-like matte feel, comfortable to the touch, not easy to slip 6. 3D non-slip comfort rollers, feel comfortable and accurate positioning 7. Suitable for all kinds of planes, and smooth movement of many kinds of planes 8. Ergonomic design, comfortable to use 9. Crisp buttons, good resilience and comfortable grip 10. Line length: 1.5 meters 11. Working mode: photoelectric 12. Wheel direction: four-way wheel 13. Dimensions: 121x64x38mm