Razer Naga Epic Chroma Multi-Color Wireless MMO Gaming Mouse (Certified Refurbished) This Certified Refurbished product is tested & certified by Razer to work like-new. The product includes all original accessories, and is backed by a 90 day warranty. With refined ergonomics, Chroma customizable lighting and intuitive in-game overlay support, this epic MMO gaming mouse fits your hand perfectly and can be personalized to your exact preferences. Its tilt-click scroll wheel, improved mechanical thumb grid buttons and greater number of programmable buttons, increase the arsenal of spells at your fingertips as well as the precision you enjoy. In any MMO, the more spells you have instant access to, the greater your advantage becomes. The Razer Naga Epic Chroma features a total of 19 buttons, including the iconic Razer Naga's 12-button thumb grid to maximize the actions at your disposal. The Razer Naga Epic Chroma's gaming-grade wireless technology gives you completely unrestricted movement without compromising on mouse control or accuracy.