Logitech Cordless Optical Trackman Trackball 8 Buttons Ergonomic Support Ref 910-000810

I have had this mouse for 4 years and all the buttons are still working fine , even with my 2 year old dropping it on the floor quite a few times . It does need cleaning every now and then but its the same with all trackballs. I find this mouse much better for gaming as you use your fingers to move the ball not your thumb , so its very accurate for FPS + RTS games . This mouse is also great when surfing the net as it has a scroll and back + forward buttons . When i got this mouse it was 70 quid so i think for 50 quid its well worth the money. This is the best cordless trackball mouse around and it will last forever so its worth paying that bit extra for .

Have had one of these for about 4 years and its never let me down, very easy to use and intuitive control whatever you use it for, much less wrist strain than a conventional mouse.