YUMQUA Y-01 Portable Mini Finger Hand Held 4D USB Wired Trackball Mouse for Laptop Mac Window Computer Fits Left and Right Handed Users -Black

Descriptions:

YUMQUA trackball mouse is perfect for mouse hand fatigue. It is off-table, without limitation by operation space and avoiding harm to wrist and muscle. The two dimensions and buttons are simply controlled by fingers.

Looking for something a bit different in a mouse? It looks like a lame Sci-Fi gun in a low budget movie, but who knows, it might just help your wrist.

How to use the 4D scrolling function:

Press the left button to lock the screen, then control the track ball to roll you screen freely.

Feature:

1. Off table and without limitation of operational space. You can easily use the trackball mouse when you are lying the bed,sofa, or far away from the desk.

2. 3-button design with trackball. 4D page scrolling function can be controlled simply by your thumb. Just use the left button to look the screen, then control the track ball to roll you screen freely.

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

4. Special design, can avoid the harm on your wrist and muscle, greatly reduces discomfort for Arthritis and CTS suffers.

6. Ambidextrous Design. Left or right hand, or cradled between both.

7. Mini size, light weight, easy to carry.

8. Color: Black

9. Material: Non-slip soft rubber

10. Compatible with Windows 95 version B / 98 / ME / 2000 / XP / NT/WIN7 /WiN10, Linux, Unix, Mac OS.

11. USB Cable length: 2M

12. Package size:11*6*14.3 (CM)

Package:

1 X Portable Finger Wired Trackball Mouse

1 X User Manual