This product has been professionally inspected and tested. The product may have minimal scratches or dents, and a battery with at least 80% capacity. Box may be generic and accessories may not be original, but will be compatible and fully functional.

Features:

• Surface tuning calibration: Easily calibrate the optical sensor to get best tracking performance for your specific mouse pad surface
• 11 programmable buttons: Set up one-button triggers to execute any command or macro at lightning speed
• On-the-fly DPI: Quickly switch through up to 5 DPI settings (200-12,000) or temporarily downshift DPI for sniping.
• Improved dual-mode hyperfast scroll wheel: Get enhanced click-to-click precision for gaming and blazing scrolling speeds for the web