Razer chroma rgb. Focus+ 20k DPi optical. 10 million sold. Egonomic wired gaming mouse. Best in class ergonomic shape. Razer optical mouse switch. Razer speedflex cable. Ergonomics without equal. Razer Optical Mouse Switch: For actuation at the speed of light. 8 Programmable Buttons: For extended controls. Best in Class Egonomic Shape: For maximum comfort. 5 On-Board Memory Profiles: For personalized settings wherever you go. Razer Focus+ 20K Optical Sensor: For cutting edge precision. Razer Speedflex Cable: For minimal drag and smooth control. Approximate Size & Weight: Length: 127 mm/5.0 in. Width: 72.7 mm/2.9 in. Grip Width: 61.7 mm/2.4 in. Height: 42.7 mm/1.9 in. Weight: 82 g/2.9 oz. (Excluding cable). Razer Focus+ Optical Sensor: With the best specs in the market, it also has new intelligent functions that automatically calibrate it across different surfaces, while synchronising each signal with your PC for more consistent tracking. Razer Optical Mouse Switch: Generates the fastest response time at 0.2 milliseconds-3 times quicker than mechanical switches. With a durability of 70 million clicks, each one actuates instantly with zero risk of any unintended clicks. Razer Speedflex Cable: Engineered to be extremely flexible and produce minimal drag, this cable offers a close-to-wireless feel so you can make large, fluid swipes during intense gameplay. What's inside. Razer DeathAdder V2. Important product information guide. What's needed. Product requirements. PC with a free USB port. Razer synapse requirements. Windows 7 64-bit (or higher) Internet connection for software installation. Windows 10 compatible. Actual product my differ from pictures. 2 year warranty. Complies with CAN ICES-3 (B)/NMB-3(B). FCC listed. Made in China. Designed and engineered by Razer in California.