Rating: 
Summary: Works Great!
Review: This is a great product! I have had no problems with this mouse since I got it. Lag is minimal when you move it after leaving it sitting. You recieve a warning when your battery runs low. I also find it rather easy to program the buttons. I highly recommend this if you are in the market for a wireless optical mouse.
Rating: 
Summary: Usability vs. TCO
Review: The reason why I rate theis product 3 stars is:1. 5 star for usability and performance
2. 1 star for Total cost of ownership - the cost of the product is high and the cost of batteries (dry cells) is extreme as I need to buy a new alkaline pair each week!
Rating:
Summary: Nice ergonomics, poor battery life
Review: I have the MS wireless mouse at work. I use it for typical desktop work (no gaming). The mouse is wonderfully ergonomic. However I have to change the batteries about every 3-5 weeks. That's just too often for me. I think I'll just go with a wired optical. The optical mice are far superior.
Rating:
Summary: Very good Optical Mouse
Review: After having a bad experience with a Wireless Optical Mouse Blue, I decided to try another Microsoft mouse. The Wireless Intellimouse Explorer has worked like a charm. I do a bit of design work (forms and web pages) so the accuracy is very nice. I don't always want to use a mouse pad, and optical mice work on any handy surface Some people have complained about battery life, but I've had my mouse a couple months and it's still going strong. In fact, the battery level indicator still shows them as full. Changing batteries often can be a pain. This is a big mouse though. Set it next to a regular mouse, or any other cordless mouse and you'll notice it's size. I haven't found it to be a disadvantage as I quickly adapted to it. Microsoft also provides excellent tech support with the product and will replace is no questions asked if you have any problems or end up with a lemon.
Rating:
Summary: What a mouse!
Review: Microsoft has certainly eliminated the need for the standard mouse that uses the rollerball style. Tired of cleaning the mouse and trying to get your mouse to be more precise? Well I certainly was and this mouse is outstanding as it performs excellent on any surface and never needs cleaning!! Could I live without the redlight on the bottom of the mouse? Yes, so far I haven't found a use for it accept something fun to look at. The buttons on this mouse really offer some great choices for people that may have trouble using the top buttons.
Rating:
Summary: Wireless Explorer vs. Logitech Optical Wireless Mouse
Review: I happen to own both Wireless Intellimouse Explorer and Logitech Cordless Optical MouseMan. From the ergonomics point of view Microsoft has a clear edge over Logitech, it is simply more comfortable. Software support is also better i.e. You can assign the two side buttons different functions depending on a particular program. When it comes to precision and range of opperation both of them are identical. However, batteries in logitech do last 1.5 times (2 months vs. 1.5) longer than in Explorer. Rechargable batteries would be helpful if you are buying anything that is wireless. Overall the price for wireless explorer is reasonable because it is not something that you would throw away once you buy a new computer. In my opinion, spending 50 once for a quality product is better than spending 25 twice for something that you would not be completely satisfied with.
Rating: 
Summary: ...
Review: I bought this thing and it seems to work fine 90% of the time. But occasionally it gets lost and you gotta do annoying swirlies just to get it back again. Unless you're crazy and hate cords just get one with a cord. Wireless is cool but it still ...
Rating: 
Summary: Worst Mouse in the History of Computing
Review: I keep seeing rave reviews, about this mouse, at various hardware sites. I simply can't believe any of these reviewers actually used the mouse. This is the worst mouse I've ever seen: I set it up on three computers at two different locations and I got the same result on every one of them - the mouse lags like crazy. If you stop moving this mouse for any length of time (like sitting and reading an article) it hibernates....then when you move it, it takes up to a second to wake up. This same problem affects the scroll wheel so, the mouse arbitrarily skips "clicks" when moving the wheel. I returned this mouse to the store within 24 hours of buying it. Do yourself a favor and buy a MS optical mouse WITH A CORD. They are wonderful.
Rating:
Summary: Get Rechargable Batteries
Review: On Windows XP at least, my system tells me I have 1 week of battery time left, and then within 15 minutes, I get a 3 day warning. After that, you have less than 5 minutes to change batteries. After I got 2 pairs of rechargable batteries (one to charge while the other is in use) it wasn't as annoying, but still you only get about 1 week out of the batteries, which still is unacceptable if you ask me. I liked the feel of my silver (wired) Microsoft mouse with the red glow on the bottom (I think it is called Explorer mouse), but the wire on those and the Optical mouse both got shorted out <6 months of use, causing the mouse to get disconnected/connected repeatly while trying to use it-majorly annoying.
Rating: 
Summary: A long awaited first attempt by Microsoft
Review: This mouse was a long awaited attempt by Microsoft to incorporate the best of wireless freedom with laser eye technology. Microsoft has succeeded in many ways, but not without a few flaws. I bought this mouse about 6 months ago, it has been working as expected, but with poor battery life. On average use, the batteries will hold for about a week. The price also hurts, but given the brandname this is expected. Promising technology, but needs some work. Not Bad.
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