Welcome to the store! 1. 3 DPI Adjustable: Easily adjust mouse sensitivity with 800, 1200, and 1600 DPI settings. Utilizing a high-quality optical engine, it achieves faster response, smoother tracking, and more accurate movement. 2. Rechargeable Mouse: The rechargeable wireless mouse features a built-in 110mAh lithium battery, easily charged via the included USB cable without needing battery replacements. After a full 3-hour charge, the wireless mouse can be used for approximately 30 days. 3. Professional Design: The vertical mouse allows your left hand to maintain a natural handshake posture, preventing wrist pain from prolonged use. It's perfect for office and home office use, designed specifically for left-handed users. 4. Wide Compatibility: The mouse works with computers, laptops, and any device with a USB connection. No additional drivers are required; it's plug and play. 5. Durable Design: The wireless mouse supports up to 50 million clicks, offering a premium feel superior to standard mice. It features a sleek, matte rubber finish that provides a great grip while preventing fingerprints and smudges. Item Type: Left Vertical Mouse Material: ABS Battery Type: Built-in 110mAh 302323 Lithium Battery (Shipped with built-in battery) Usage Distance: >15M Power: +5db Max Sensitivity: 800, 1200, 1600 DPI Adjustable in three levels System Requirements: For Windows 2000, XP, Vista, CE, Win 7, Win 10, Linux, Android 1 x Mouse 1 x Charging Cable 1 x Adapter 1 x User Manual Your 100% satisfaction is our top priority. We will provide you with the best service. If you encounter any issues after receiving the product, such as damage or incorrect quantity, please contact us immediately, and we will provide you with the best solution!