DPI Switchable by pressing the DPI switchable button. You can switch from 800dpi to 1600dpi or vice versa. 800dpi works well with most computer work while 1600dpi was designed to work better for more precise work such as graphic and engineer drawing.

Two Kinds of Scrolling – Hyper-Fast or Click to Click selected by pressing the wheel button. Hyper-fast scrolling wors better for long documents, Click to click scrolling is good for navigating lists, slides and image collections due to its precision ratcheting.

Power Saving Button – The On/Off power button will save power, make your battery last longer.

Low Power Indicator -LED indicator will light up to remind you when the power runs low.