New Finger Handhold 4DB Mini Trackball Mouse Wired Mice Portable Thumb Control For PC Computer

Features:<br><br>1.It can be operated in various ways to ensure long-term use <br><br>2.No limitation of operational space<br><br>3.Avoid sitting closely to the monitor <br><br>4.Plug and play ,no software required<br><br>5.Fits left and right handed users<br><br>6.Compatible with for Win7,for Win8 ME/for XP/ for NT<br><br>7.Unit Dimensions: 3.15*1.57*1.96 inches (8*4*5cm)<br><br>8.USB Cable Length: 78.74 inches (200cm)<br><br>9.Color: Black<br><br><br><br>How To Use:<br><br>1.Put your index or middle finger into the hole of this mouse.<br><br>2.Control the track ball for moving cursor and press the right and left button with your thumb<br><br>3.When using "Drag and Go" function, press the button in the hole of the mouse that has the same function as the left button of the common mouse<br><br>4.Use the left button to lock the screen and then you can control the track ball to roll your screen freely<br><br><br><br>Package included: 1 x 4D USB Mini Trackball Mouse