The AZiO Levetron GM533U Gaming Mouse looks to combine comfort and performance. The Levetron GM533U features some essential features that gamers rely on. First, the GM533U allows easy DPI adjustments with a dedicated button. Adjustments are set to 5000, 2000, and 800dpi. Tracking is done with a laser sensor for optimal accuracy. AZiO built in 3 dedicated macro buttons; however, all 9 buttons are fully programmable with the included software. They've also included weight adjustments in 5g increments. AZiO includes a 3 year limited warranty with the GM533U Gaming Mouse.