Purchased from the Lenovo online store. Brand new, unopened. Lightweight design at 57g. Features lightweight and durable fluorine resin mouse feet (100% PTFE). 8000 DPI resolution (4-stage preset available via dedicated software, Legion Accessory Central, and can also be switched using the DPI button on the mouse). Omron mechanical micro switches that can withstand up to 20 million clicks. Symmetrical design (for both right-handed and left-handed users). Programmable 6 buttons (left, right, wheel, side x 2, DPI x 1). Beautiful LEGION logo on the top of the body with lighting. Various settings are possible via the dedicated software, Legion Accessory Central, which can be downloaded from our support site.