Portable Finger Hand Held 4D USB Mini 3G Trackball Mouse
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.
*Off table and without limitation of operational space
*4D page scrolling function can be controlled simply by your thumb
*Features 3-button design with trackball
*USB 2.0 interface, plug and play, no software required.
*Special design, can avoid the harm on your wrist and muscle, greatly reduces discomfort for Arthritis and CTS suffers
*Easy to use – left or right hand, or cradled between both
*Mini size, light weight, easy to carry
*Ideal for both laptops and desktops
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