The fastest response in the world! Innovative Light Strike technology uses optical switches for unrivaled response time! Special infrared sensors require only 0.2 ms to get a response. The use of this technology also reduces the likelihood of accidental pressing and reduces the noise level. Unique durability Omron buttons with a 50 million click cycle left/right, made of superior plastic and contacts, will not wear out and are completely ergonomic. Optical wheel: over 1 million revolutions. 16-Grade Calibration Technology Innovative 16-step calibration technology ensures the mouse is perfectly calibrated to work on all surfaces and the Armor Metal Mouse Feet's incredibly high tracking accuracy. The built-in memory of 160 KB will allow you to store up to 4000 commands and combinations Individual macros can be created for all eight mouse buttons. You won't have to restore them when connected to another computer - the gadget is equipped with a built-in memory unit. Superior Reliability Metal feet make it easy to slide the device on various surfaces, and also protect it from damage. They withstand a "mileage" of up to 300 kilometers, which is 100 times more than plastic or rubber pads. Rest assured, your every move and click will be transmitted exactly in an instant!