POKL Finger Ambidextrous Trackball Mouse - USB

Specification: Resolution: 800DPI. The length of 2 meters. In the use of drag and drop functions and , press the button in the hole in the same function of the mouse, the left mouse button together. Use the left button to make the screen lock, and then you can control your track ball screen roll. Package include:. 1 Pc* track ball mouse(with retail package). Product size: 7.5cm * 6cm * 4.5cm; Control the ball to move your cursor, then press the right button to use your thumb. How to use:. Put your finger or middle finger in the hole in the mouse. Color: Black. Note: The size is measured by hand, please allow slight measurement errors. Due to the color display of different monitors, the color of the photo may be slightly different from the actual product.