• 100% brand new and high quality

• Quantity:1pcs

• Color: Black

• Usb-2.0-schnittstelle， plug and play， no need to install any software

• 4D page scrolling function can be controlled by a simple thumb

• Special designs that can damage and avoid muscle in the wrist

• Small in size， light in weight， easy to carry

• Suitable for left-handed and right-handed users

• Compatible with all of the operating system windows and Linux， Unix， Mac systems， etc.

• Resolution: 800DPI

• The length of 2 meters

• Product size: 7.5cm * 6cm * 4.5cm;

• How to use:

• Put your index finger or middle finger in the hole in the mouse.

• Control the ball to move your cursor， then press the right button to use your thumb.

• In the use of drag and drop functions and CRP， 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 includes:

• 1 x track ball mouse(with retail package)