Introducing the next great mouse in arsenal. The naga chroma's revolutionary 12 button thumb grid has been outfitted with mechanical switches to give you tactile and audible feedback, so you can be assured of every actuation. Now with 16.8 Million color options and 19 fully programmable buttons, this is the ideal mouse for gamers looking to take their play to the next level. Featuresthe world's most precise gaming mouse sensor with 16, 000 dpiimproved ergonomics-the razer naga chroma features a one-size-fits-all ergonomic form factor to ensure your hand fits snugly for maximum comfort.