Condition: Fully functional. Battery drains quickly. Otherwise, no issues. All accessories are shown in the photos. Specifications (Reference): ・Connection: 2.4GHz USB Unifying receiver and Bluetooth (wireless) compatible ・Sensor: Logitech "Advanced Optical Tracking," Nominal approx. 380 dpi (min 512 – max 2048dpi) ・Number of buttons: 8 buttons (left/right click / wheel click/tilt / back/forward / Precision mode / Easy-Switch, etc.) ・Tilt adjustment mechanism: 0°/20° with standard base, 10°/30° with included wedge ・Trackball diameter: Approx. 35 mm (1.375 inches) ・Weight/Dimensions: Approx. 99.8mm wide x 132.5mm deep x 51.4mm high, weight approx. 259g (including metal plate) Color: Black (body color is black/graphite) Notes: ・Returns are not accepted after purchase.