Product Description Razer Ouroboros Elite Ambidextrous 4G Dual Sensor Gaming Mouse The Razer Ouroboros features customizable ambidextrous ergonomics with an adjustable arched palm rest and back, as well as two interchangeable side panels. This gaming mouse will perfectly fit any and every hand curvature and grip-style, ensuring optimum comfort and minimal fatigue during extended play for every gamer – especially you. Experience the pro-gaming standard of precision with the 8200 dpi 4G dual sensor system, outfitted with a laser and an optical sensor to accurately calibrate the mouse to any surface for exceptional tracking. The Razer Ouroboros not only matches the speed of your swipes, no matter your play style, but also gives you adjustable liftoff tracking distance, empowering you with more control than ever. Main Specifications Product Description Razer Ouroboros – mouse Device Type Mouse Connectivity Technology Wireless – USB Orientation Right and left-handed Dimensions (WxDxH) 7.1 cm x 13.7 cm x 4.2 cm Weight 135 g Wireless Receiver Multi-functional Charging/Receiver Dock Movement Detection Technology Laser Buttons Qty 11 Movement Resolution 8200 dpi Performance 50 G maximum acceleration, 1 ms response time, 1000 reports per second, 200 inches per second Features Scrolling wheel, built-in palm rest, Hyperesponse buttons, interchangeable side panels, 4G Dual Sensor System, Gaming-grade Wireless Technology OS Required Apple MacOS X 10.6 – 10.7, Microsoft Windows Vista / XP / 7 / 8 Extended Specifications General Device Type Mouse Wireless Receiver Multi-functional Charging/Receiver Dock Orientation Right and left-handed Width 7.1 cm Depth 13.7 cm Height 4.2 cm Weight 135 g Input Device Connectivity Technology Wireless Interface USB Movement Detection Technology Laser Buttons Qty 11 Movement Resolution 8200 dpi Performance 50 G maximum acceleration, 1 ms response time, 1000 reports per second, 200 inches per second Features Scrolling wheel, built-in palm rest, Hyperesponse buttons, interchangeable side panels, 4G Dual Sensor System, Gaming-grade Wireless Technology Expansion / Connectivity Interfaces 1 x USB – 4 PIN USB Type A Battery Run Time (Up To) 12 hour(s) Software / System Requirements Software Included Razer Synapse 2.0 OS Required Apple MacOS X 10.6 – 10.7, Microsoft Windows Vista / XP / 7 / 8 System Requirements Details – HD 100 MB