Speed Surface The Clutch GM40 Gaming Mouse is designed for all-round gaming with its solid shape & unique functions. With a precise optical sensor of up to 5000 dpi gamers are offered more control ingame. The dual profile settings allow for quick customizing of DPI between default mode & advanced mode. The exclusive switch on the bottom offers more flexibility to turn on/off the side buttons for gaming/office environment. Ambidextrous Design. Unmatched Ambidextrous Ergonomics Clutch GM40 GAMING mouse is crafted by ergonomic design providing both right & left hand gamers the most comfortable gaming experience. Left & Right hand mode switch Convenient Side Button Switch GM40 takes care of both right- & left-handed users. A physical switch at the bottom of the mouse enables users to switch between left- & right-handed use & even a gaming mode which disables the side buttons. PMW 3310 optical sensor The PMW 3310 is one of the most popular gaming sensors in the market built with highly sensitive & durable materials. This sensor will give the GM40 the edge over the enemy. DPI Switch. DPI Adjustment for All Needs Providing two DPI settings without software control for various usages. Just press the both left & right buttons once then switch to advanced mode & enjoy it! Side grips. Integrated Anti-Slip side grips Featuring the exclusive anti-slip texture with dragon-scale design on both sides. This allows gamers to have full control at all times. Gaming Build Quality Equipped with OMRON switches that last for over 50 million clicks & a gold-plated USB (Universal Serial Bus) connector the GM40 provides ultra-long lifespan for long-term use. LED Dragon The GAMING Dragon LED adds a bit of subtle bling to this solid & clean looking mouse..