Specification:1. Brand: Motospeed2. Model: V183. Connection: USB Wired4. DPI: 400 / 800(Default) / 1000 / 1200 / 1600 / 2400 / 3200 / 4000dpi5. Keys amount: 9 (Left, Right, Forward, Backward, DPI±, Fire Key, Sniper Key, Scroll Wheel)6. Refresh rate: 500Hz7. Image processing: 4000FPS8. Keys life: 5 Million Clicking life9. Acceleration: 10g10. Speed: 48iPS11. Cable Length: Approx. 1.5m12. Dimension: 124 * 80 * 38mmFeatures:1. Provides 8 files dpi values for option, and each dpi with different color backlit.2. Equipped with fire key and the sniper key, more suitable for PC gamers.3. Built in 5 weights, each weights 5g, easily adjusting the mouse weight.4. Driver link: Package Included:1 * Motospeed V18 4000DPI 9 Keys RGB Backlit Optical Gaming Mouse with Fire Key Sniper Key