When comparing Razer Mamba vs Microsoft Wireless Laser Mouse 7000, the Slant community recommends Microsoft Wireless Laser Mouse 7000 for most people. In the question“What is the best mouse for programmers?” Microsoft Wireless Laser Mouse 7000 is ranked 5th while Razer Mamba is ranked 33rd. The most important reason people chose Microsoft Wireless Laser Mouse 7000 is:
Your hand sits in a more natural position because your forearm, wrist, and fingers form a straight line.
Specs
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Pros

Pro Good design, good software
Very comfortable, good weight and easy-to-program options (button functions, colors, etc).
Pro Has wireless and wired options
The Razer Mamba is a wireless mouse that is also able to be wired by simply plugging in the provided USB cable.
Pro Comfortable for any hand size
Your hand sits in a more natural position because your forearm, wrist, and fingers form a straight line.
Pro About two weeks of wireless use
About two weeks of wireless use before needing a charge. A full charge takes about 10 hours, but the 7000 accepts a standard AAA battery as well if you need to use it in the interim.
Pro Accurate and responsive
Pro Good charger
Recharging the mouse is easy, it lasts for about two weeks and the battery is replaceable.
Pro Zoom
There's a dedicated button for single-click magnifying tool to zoom in.
Cons

Con Battery life is very limited
Battery charge dies very quickly.
Con No left handed version
