A decent mouse for the price. The rubber o-ring that surrounds the scroll wheel lasted about 2 1/2 years before it disintegrated. I still use it though and bought another mouse in a different color for back-up just in case something else was to happen.

I like the 3500 better but this one comes with the addition of a back button, side-scrolling and is slightly larger in the hand.

takes one battery and has the amazing bluetrack

rocks back and forth on a flat surface; scroll wheel sucks; It has no stoppage between scrolls so is useless for switching weapons in games; It also seems to be inconsistent and stick, As with all microsoft mice with the side rubber, it wears out and gets gross after a few years of constant use

After years of use, my mouse finally gave it up. I liked the first one so much, when it broke I ordered another of the same model.

Best Mouse of all! Today I'm going to buy the same mouse again. Microsoft 4000. I wore out my other one. I want a change, so I'm getting this same mouse maybe in another color.

My 4000 mouse with the v2 transceiver works fine with Intellipoint, but the v1 one does not, and I haven't found a solution. Very disappointing MS software / hardware won't even work together. Since I'm running this on WinXP, I doubt MS support would help me with this problem.

Works on most surfaces; Batteries life seems ok to me; I turn off the power switch when I'm not at my computer; The magnify feature is one of the main reasons I buy / like / use these mice

Rubber on scroll wheel can disintegrate after awhile; Tried storing transceiver in mouse once and needed a pliers to remove it; I'm having a problem with Intellipoint software not recognizing the v1 nano transceiver on this mouse and my 3500 mobile mouse also, so no button customization is possible...

WHAT A wireless mouse for use with any laptop, computer or device that has a USB port and capacity for a mouse to be used with it. It does more than a standard Microsoft mouse so is priced higher at ￡25 but the extra features make this a worthwhile way to fritter away a purple note.

Good stability; useful extra features but does remain a basic wireless mouse

Not the long battery life promised by Microsoft

The only issue I had with this keyboard was the compatibility with Windows 7. You can download the driver on the Microsoft website, so it's no big deal. I love everything else. The wrist pad is soft, the "my favorites" buttons are awesome, and the zoom button in the middle is useful.

Comfortable Design; Easy To Clean; Great Features; Quiet; Reliable Performance

Limited Compatibility

I've used this wireless mouse for 4 years and it did work well. Proper size (not too small), light weight (only needs battery x1), smooth scroll wheel and great last page button on the left side of the mouse.

I've been using this mouse for three weeks now and it's very good. I used it even on reflective surfaces without problem.The fourth button can be configured to execute custom command, but only one. I use it as AvPag, but can be any key or key combination.I recommend it.

Accurate Tracking; Comfortable Design; Glides Smoothly; Works On Any Surface

This is a small mouse but is easy to use. The USB attachment is tiny and can be left in place. Only downside is that the mouse must be switched on before the computer is fired up or the USB toggle removed as otherwise it seems to cause a problem with the start up with my computer running windows 7