1. Metal texture, double-sided silver-plated design, cool mechanical style 2. Two working modes, full-key macro definition, one-key completion of complex operations 3. Four speeds, adjustable at will: 800-1200-2400-3200DPI, adapt to more environmental needs 4. High-precision optical engine, providing more accurate lamp 1 positioning 5. The built-in metal block is more stable: three-dimensional anti-skid texture, no slippage during violent operation 6. Ergonomic design, more comfortable, streamlined appearance, better fit the palm, reduce fatigue Product parameters: 1. Interface: USB 2. Working method: photoelectric 3. Size: 125x65x40mm 4. Lighting effect: 7-color breathing light 5. Weight: about 140g 6. Connection method: USB wired 7. Working current: less than or equal to 100mA 8. Working voltage: DC 5V 9. Scroll wheel direction: touch scroll wheel 10. Applicable models: desktop Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.