The RAZER DeathAdder Essential retains the classic ergonomic form that’s been a hallmark of previous RAZER DeathAdder generations. Its sleek and distinct body is designed for comfort, allowing you to maintain high levels of performance throughout long gaming marathons, so you’ll never falter in the heat of battle. 5 Hyperesponse Buttons - Independently programmable Hyperesponse buttons give you advanced controls for a competitive edge. Up To 10 Million Clicks - The multi-award winning RAZER Mechanical Switches last up to 10 million clicks for longer lifespan and extreme reliability. 6,400 DPI Optical Sensor - Allows fast and precise mouse swipes that offer greater control for the most essential gaming needs. Compatible with USB. Includes Mouse. Optical sensor. 5 buttons. Programmable buttons. Scroll wheel. Manufacturer’s 2 year guarantee. EAN: 8886419333265.