DELUX M618 Plus Wired Blue Version Optical Mouse Ergonomic Vertical Mouse 1600DPI

1. High-end optical engine, precise positioning. 2. DPI: 600/1000/1600DPI 3. Switch Life: 3 million cycles 4. Button: 4 buttons with scroll wheel 5. Ergonomical design, comfortable touch, long-term use without fatigue 6. Intelligent connectivity, plug and play 7. Built-in PAN3509 chip