Features: Experience precision and comfort with our ergonomic wireless trackball mouse, featuring wireless connectivity and with lighting system. Wireless Ergonomic Trackball Mouse, rechargeable reduce wrist strain and enhances control. This trackball mouse features smooth glidings, responsive buttons, and 4800DPI for a clutter resist workspaces. For professional, gamer, and casual user improve hand postures and navigation ease. This wireless trackball mouse adapts to your environment, providing stability and accuracy. Specifications: Sizeabout 132x100x62MM/5.19x3.94x2.44in Adjust: 800/1200/1600/2000/2400/4800DPI Support2.4Ghz Button: 8 Support Lighting Distance: More than 10M Package Includes: 1PC Wireless Trackball Mouse note: Due to the problem of lighting effect and shooting there might be tolerances in product, please understand. Please allow 0-2mm error due to manual measurement.