The next evolution of the Razer Viper is here—now featuring cutting-edge wireless and sensor technology within a 74g lightweight design. Built to be even better, the Razer Viper Ultimate is armed with new Razer HyperSpeed wireless technology, boasting 25% more speed than other wireless mice. What’s more? Our new and improved Focus+ optical sensor is equipped with intelligent functions allowing for consistent, precise tracking. Not all wireless mice are made equal. This is the Razer Viper Ultimate: http://rzr.to/razer-viper-ult ----- SUBSCRIBE and get hooked up with exclusive content, codes. and giveaways. null Keep with the Cult: http://www.facebook.com/razer http://www.twitter.com/razer http://www.instagram.com/razer http://www.google.com/+razer null