To play your best, use what the best play with. The Fatal1ty 1010 Mouse was designed with every last detail scrutinized by the world's top First Person Shooter (FPS) gamer, Johnathan "Fatal1ty" Wendel. The ingenious G-Weight™ modular weight system is the ultimate way to customize your gaming experience on the fly. The high definition HD-Optix™ engine enables deadly accuracy in any game. RapidRes™ with visual resolution indicator takes full advantage of HD-Optix™ power, letting you switch instantly between optical resolutions (400/800/1600 CPI). The SpeedWire™ cable enables the fastest connection possible to your PC ensuring every move and motion is executed flawlessly. Enter the world of the gaming elite using the Fatal1ty 1010 Mouse, your competitors don't stand a chance at all! TrueGrip™ - 5 Point Control System Take total control with TrueGrip™ 5 Point Control System. Each control point on the mouse has been contoured and optimized to give you precise fingertip control. No more palming your mouse. The TrueGrip™ System gives you: Quick firing of the 3 primary buttons. The "finger down" method as opposed to flat finger allows for faster clicking and reaction times. An extra axis of control as the mouse "floats" between your fingers. Your fingers control the fine movements of the mouse while your arm controls the major movements. With a palmed mouse, your arm controls the movement limiting your amount of precision. A broad range of movements and control. This makes it easy to perform special movements and "trick" shots. Direct access to the side thumb trigger letting your thumb stay ON the trigger at all times. No more having to lift your thumb up and off the mouse to activate the trigger button. G-Weight™ Interchangeable Modular Weight System Lock and load instantly using the G-Weight™ top loading, easy to access modular weight system. Each weight module or "caliber" is balanced to provide an optimized center of gravity. Light Caliber - 3.5G extra agility and quick movement (included in mouse) Medium Caliber - 11G ideal for all around gaming Heavy Caliber - 26G for extra precision and balance RapidRes™ One Click CPI1 Resolution System with Color Indication On the battlefield, you don't have time to guess. You need to KNOW. What's the use of being able to change resolutions instantly if you don't know what resolution you're in? Switch instantly to the resolution you want now with the RapidRes™ system. Know at a glance what resolution you're using. Just check the color... and gain the edge over your opponent. Green - 400 CPI Amber - 800 CPI Red - 1600 CPI SpeedWire™ - Zero Oxygen Copper Wire (with Gold Plated USB Connection) In the heat of battle, every millisecond counts. SpeedWire™ combines zero oxygen copper cabling and a gold plated USB connector for the fastest connection possible to your PC. HD-Optix™ - 1600 CPI High Definition Optical Engine 5.8 megapixels per second report rate 15G of acceleration tracking (40 inches per second) 16-bit ultra-throughput data path Up to 4X the precision of standard mice Side Mounted Thumb Trigger