Long battery life.With up to 350 hours of gameplay on a single charge of the lithium ion battery, you can keep the fight going for weeks on end. Alienware native 16,000 DPI sensor.Move swiftly and precisely with the latest generation custom sensor. 1,000Hz polling rate.Along with 40 G maximum acceleration, let you stay on top of the action. Fully customizable AlienFX RGB.Gives you 16.8m color control via Alienware Command Center. Optical technology.LED lights scan the surface beneath the mouse to detect movement with a fair amount of accuracy, suitable for everyday computing and browsing.