The G7's sensitivity buttons are preset to 2,000, 800, and 400 dots per inch (dpi); by default, the thumb button triggers the Back command in a Web browser. To get the most out of the G7, you'll have to install Logitech's included SetPoint software, which lets you adjust dpi settings and program the thumb button.
The G7 performs flawlessly and is very comfortable to use. Movement tracking is responsive, and the sensitivity buttons are easy to reach during frantic combat. We didn't experience any lag or glitches in movement, and the buttons provided good tactile feedback. Battery life is acceptable. Logitech rates each battery pack for up to eight hours of use, and the packs charge quickly, in about three hours, ensuring that your mouse will always have power.
Logitech backs the G7 laser cordless mouse with a three-year hardware warranty, which is two years longer than the industry standard for input devices. You can access service and support online or by toll-free telephone call. Logitech's support Web site also offers software updates, driver downloads, and user discussion forums.