About this item Ergonomic Design for Comfort: Nulea M505 trackball mouse is designed to fit your hand perfectly, reducing muscle stress and promoting comfort. The 44mm index finger trackball enhances cursor control and reduces arm stiffness, making it an effective solution for treating wrist pain. Precise Tracking with Adjustable DPI: With 5 different DPI modes, the trackball mouse allows you to adjust cursor movement for superior accuracy and control. You can easily switch between DPI modes using the button located at the bottom of the mouse. Perfect for Small Work Spaces: The smooth index finger trackball allows you to navigate your cursor on practically any surface, making it ideal for small workspaces. Whether you're working at a cluttered desk or on a couch or bed, Nulea trackball mouse can boost your efficiency. Long-Lasting Battery: Our ergonomic mouse features a built-in rechargeable battery that lasts up to 90 days on a single full charge. You can use our mouse for extended periods without worrying about charging it. RGB Effect：The index finger trackball mouse comes equipped with an RGB effect that adds a pop of color to your setup. You can turn the light off/on by Long pressing the left and right button for three seconds. M505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, compatible with iPad, Mac, Windows, Android Electronics › Computers & Accessories › Computer Accessories & Peripherals › Keyboards, Mice & Accessories › Mice Electronics › Computers & Accessories › Computer Accessories & Peripherals › Keyboards, Mice & Accessories › Mice Electronics › Computers & Accessories › Computer Accessories & Peripherals › Keyboards, Mice & Accessories › Mice Electronics › Computers & Accessories › Computer Accessories & Peripherals › Keyboards, Mice & Accessories › Mice