Etekcity Scroll T-140 8200 DPI High Precision Seven Programmable Buttons Ergonomics Laser Wired USB Gaming Mouse for PC, Omron Micro Switches Includes two addtional side wings for full customization to the user's specific ergonomics; Ergonomic design increases comfort for enhanced gaming performance,Teflon foot pad,decrease friction;Screw hole for extra wing High-resolution Avago sensor ensures responsiveness and accuracy - Omron switches create unsurpassed tactile feedback and speed with firm and crisp clicks Features adjustable sensitivity (600/1200/2000/3000/4800/6400/8200 DPI), 1000 polling rate, and durable braided cable sheathing 6ft cable with gold-plated USB connector ensures greater durability, ergonomically designed with rubber coating for grip minimizes hand fatigue for all-day comfort and control Store up to Five ready-to-play profiles;works with Windows XP/Vista/7/8 and Mac OSX - Plug-and-play installation,easy to use