I first got this mouse in march 2006 and since then i have not used another mouse. The ergonomic shape of it seems to fit so perfectly in your palm. This mouse cost me £26 back then im not sure how much they are now but whatever the cost its worth it.
The mouse has a customisable button on the left side which you can set to do almost and function e.g copy highlighted text, scroll through open windows and even exit a program. Not only is this button customisable but they all are, even with options to perform different functions in different programs. The laser in the mouse is a 1000 DPi resolution which means you only need to have a small space to use the mouse in and still move all over the computer screen.
There are many surfaces this mouse works on, only on a glass window did this mosue fail to work. It will however work perfectly fine on a mouse mat, table or trouser leg.
The battery is kept inside the mouse, released by pressing a button above the microsoft logo, once pressed a slot will slide out allowing you to change the battery. In the 10 months ive owned this mouse ive only needed to change the battery about 3 times. It takes AA batterys.
The mouse transmits signals to a usb receiver which you plug into your usb slot in your notebook or desktop. I use this mouse on my desktop pc and the signal works fine, i even tried it on the table 3-4 metres away from theusb receiver and it was working well. Once you have finished using the mouse then it is best to put the usb receiver back into the bottom of the mouse for it to be turned off and save energy.
I would buy this mouse if you are someone looking for a reliable wireless usb mouse for your desktop or notebook. Even if you are gaming on a desktop this mouse provides a reliable signal, which is what you need if you play online multiplayer shooters.
Hope i helped someone, thanks for reading :)