specifications: versatile ambidextrous design: play at your highest level with either hand using your most comfortable grip, be it palm, claw, or fingertipprecision to win: take control over your gaming thanks to a 12400 dpi optical sensor for high-accuracy trackingweighs just 86 g: highly lightweight construction lets you play effortlessly at your top form for hoursbuilt to last: durable construction featuring 50 million click-rated omron switches and a premium braided cable gives the m55 rgb pro the strength to withstand years of intense gaming sessionseight fully programmable buttons: create an in-game advantage with powerful macros and button remaps;simple plug-and-play setup: ready to game right out of the box-just plug in through a usb port and start taking down the competition