Bjorn3D posted a review on Gigabyte Aivia Krypton Mouse and Mouse Pad

The Aivia Krypton is a rather large mouse and is slightly elongated but it is comfortable to hold. Personally, I think the size is perfect for my hand as I have pretty big hands. The left and right sides of the mouse is rubberized with wave pattern to provide a better grip.The buttons and the top cover are made with plastic. The mouse is symmetrically designed for both lefties and righties.

We get two buttons on the left side and two buttons on the right side (again symmetrically placed). On the top, we have the usual left and right click button, the vertical scroll wheel and a DPI switch. The scroll wheel on the Aivia Krypton is rubberized and also is clickable but does not support horizontal scrolling. It has a blue LED embedded but if you are not a fan of the LED, you can use the included software to adjust its brightness or completely turn it off. The scrolling is smooth and the wheel has a nice friction as it turns and thanks to the rubberized surface, it has a very nice contact feel.

Behind the scroll wheel is the the DPI switch that features four settings that are customizable from 200 all the way up to 8200 DPI in 200 stepping. To switch between different DPIs, we just have to press the button toward the front or the rear of the mouse. As oppose to some mice that use a single button to cycle through different DPI settings, Gigabyte’s implementation of a flip design would prevent any accidentally DPI change.

  Gigabyte Aivia Krypton Mouse and Mouse Pad