4 Pcs USB 4D Mini Trackball Mouse 800DPI – Portable Ergonomic Thumb-Scroll Finger Control for PC Laptop, Left & Right Hand Use

Portable ergonomic USB trackball designed for both left- and right-handed users. This compact, finger-controlled mini trackball features 800DPI sensitivity and a thumb-operated 4D page-scrolling function for smooth navigation on PC, laptop, home, office or gaming setups. It is compatible with all operating systems, including Unix and other systems, and supports drag-and-drop and CRP functions. Press the recessed button in the housing to perform the same action as the mouse left-click; using the left button can lock the screen so you can control scrolling with the trackball alone. Cable length: 2 meters. Package includes 1 x track mouse (with retail package). Quantity:1pcs.