ELECOM EX-G Wireless Trackball (Thumb-operated) / New, Unused Thank you for viewing. [Product Details] - Brand: ELECOM - Model: EX-G Wireless Trackball Mouse (Thumb-operated) - Condition: New, Unused - Set Contents: Main unit, original box, instruction manual, USB receiver, 1 AA battery [Features] This trackball mouse is operated with your thumb and features click, tilt wheel, and DPI switching. It also has a horizontal scroll function, convenient for long documents like Excel, and a stowable receiver for easy portability. [Condition] The item has not been opened. Recommended for those seeking a complete set. Immediate purchase is welcome. Please feel free to comment if you have any questions.