A sleek all-black finish & added rubber side grips for enhanced handling, the Black Edition is a tribute to a legacy of ownage, a celebration for 5 years of every gamer’s victory thanks to their trusty Death Adder. The Razer Death Adder is the weapon of choice for gamers seeking a combination of comfort & unbridled gaming precision. Enjoy extended gaming sessions in comfort with its right-handed ergonomic form factor crafted for the world of competitive gaming; & when the difference between victory & defeat is determined between heartbeats, the 3500dpi Razer Precision 3.5G infrared sensor translates your every movement into frags with pinpoint accuracy. Ergonomic Right-Handed Design Long after your opponents’ skill is eroded by hours of gaming, the Razer Death Adder’s ergonomic right-handed design provides optimum comfort for intense & extended gameplay that keeps you at your sharpest. 3500dpi Razer Precision 3.5G infrared sensor Kill what you’re aiming at with the new 3500dpi Razer Precision 3.5G infrared sensor that arms you with 4x more precision than a standard 800dpi mouse. 1000 Hz Ultrapolling A response time of 1ms, as compared to that of 125 Hz / 8ms found in conventional gaming mice, gives you the competitive edge over your opponents with faster feedback between the Razer Death Adder & your computer so your movements are executed instantaneously. Specifications: 3500dpi Razer Precision 3.5G infrared sensor Ergonomic right-handed design 1000 Hz Ultrapolling / 1ms response Five independently programmable Hyperesponse buttons On-The-Fly Sensitivity adjustment Always-On mode Ultra-large non-slip buttons 16-bit ultra-wide data path 60–120 inches per second & 15g of acceleration Zero-acoustic Ultraslick mouse feet Gold-plated USB (Universal Serial Bus) connector Seven-Foot, lightweight, braided fiber cable Approximate Size: 127 mm / 5.00” (Length) x 70 mm / 2.76” (Width) x 44 mm / 1.73” (Height) Approximate Weight: 148 g / 0.33 lbs