Razer Naga Pro - Modular wireless gaming mouse with interchangeable side panels for MMO, MOBA, and FPS games on PC/Mac (HyperSpeed Technology, 19 + 1 programmable buttons) Black

["Three interchangeable side panels: Side panels with 2, 6, and 12 buttons can be easily attached to be prepared for any genre. Each button provides tactile, audible feedback for a distinct triggering experience", "Razer Hyperspeed Wireless: With extremely low latencies, seamless frequency switching, and up to 100 hours of battery life, the Razer Naga Pro shines with a fast and smooth connection that rivals even wired ones", "(19+1) Programmable buttons: Whether assigning essential commands or using advanced macros, all commands can be executed immediately, providing customized control in any situation", "Optical Razer Focus+ Sensor with 20K DPI: New intelligent features like Motion Sync and Asymmetric Cut-off ensure that our sensor captures all movements flawlessly without spinouts - for lightning-fast responses and pixel-precise precision", "Razer Optical Mouse Switches: Each click is forwarded in 0.2 ms with no debounce delay, allowing for up to 70 million fast and clean inputs - a faster and more robust design that finally eliminates unwanted clicks"]