Description:

This is a portable finger handheld 4D Usb mini trackball mouse with off-table design for free and comfortable use. Perfect for laptop users.

Features:

1. Off-table and without limitation of operating space

2. 4D side scrolling function can be controlled easily by your thumb

3. Features 3-button design with trackball

4. USB 2.0 interface, plug and play, no software required.

5. Special design, can avoid harm to the wrist and muscle, greatly reduces discomfort for arthritis and CTS sufferers

6. Easy to use - left or right hand, or cradled between both

7. Mini size, lightweight, easy to carry

8. Ideal for both laptops and desktops

9. Material: non-slip soft rubber

10. Place the end of your index finger or middle finger on the trigger button and your thumb on the roller ball

11. Suitable for tablet, laptop, desktop computer

12. Compatible with Windows 95 version B / 98 / ME / 2000 / XP / NT/WIN7

13. Unit Dimensions: 3.15 x 2.05 x 1.97 inches (8 x 5.2 x 5 cm)

14. USB Cord Length: 73 inches (186 cm)