UGREEN Wireless Trackball Mouse, Ergonomic Mouse with Finger Control, Rechargeable Bluetooth & USB Modes, 40dB Silent, Customisable Button, High-speed Roller, for Laptop/Desktop, Windows/macOS, etc.

Perfect for Office & On-the-Go: This trackball mouse is designed for those who work long hours or travel frequently. Simply use your finger to control the cursor; the operation is identical to a traditional mouse, effectively relieving wrist pain and suitable for confined spaces. Smooth and Precise Trackball: The trackball offers a smooth, ergonomic operation, supports all the functions of a traditional mouse, and can be operated with just your fingers, greatly reducing hand pain and allowing for use in confined spaces. Rechargeable and Long Battery Life: The wireless mouse is equipped with fast charging technology, and it can be fully charged within 2 hours. 140-day Battery Life eliminates the hassle of frequent charging. Two Connection Modes: The computer mouse supports bluetooth and 2.4GHz USB connection. You can easily switch modes and connect the mouse to up to 2 devices at the same time. For example, the USB direct connection mode can connect to a desktop computer, while the Bluetooth mode can connect to a personal computer or tablet. 40dB Super Quiet: The silent mouse features a 40dB ultra-quiet button design, with a click volume lower than a whisper. Even in quiet environments like late at night or in a library, it won't disturb those around you, allowing you to focus on work or creation wherever you are without worrying about disturbing others Customizable Function Keys: This Bluetooth mouse allows you to set copy and switch to customizable buttons, reducing the burden on your left hand and significantly improving work efficiency. High-speed Roller: The scroll wheel supports scrolling and left and right movement. When browsing very long tables, you can simply scroll the wheel to the end of the table. Multiple Adjustable DPI: The mouse uses optical tracking technology to achieve precise tracking on any surface. It has 5 adjustable DPI settings (4000/2000/1600/1200/800) to meet various usage scenarios. For example, 800/1200 DPI is suitable for daily office work, 1600 DPI is suitable for lightweight design, 2000 DPI is suitable for high-resolution work. Note: Some users may experience some discomfort when first using our trackball mouse. This is normal and requires familiarity with the new grip and position. We recommend allowing 1-2 weeks for adjustment. Many users find that once acclimated, the comfort and support significantly improve their overall experience.