Characteristics and Interoperability RAZER DEATHADDER V2 X: UNLIMITED HIGH-SPEED ERGONOMICS Sold more than 15 million DeathAdders. It has won more than ten awards in total. With dual wireless connectivity via lightning-fast RazerTM HyperSpeed Wireless or Bluetooth, as well as seven programmable buttons—including two new quick-access edge buttons—iconic ergonomics now offers unrestricted control. ICONIC COMFORT MAINTED. RECOGNITED ERGONOMIC DESIGN. More pros than any other mouse have won thanks to the DeathAdder's recognizable shape, including three-time League of Legends world champion Faker. It has over 15 million loyal fans worldwide. LOW DELAY. Exceptional output. HYPERSPEED WiFi RAZERTM. Utilizing the same lightning-fast RazerTM HyperSpeed Wireless technology as our best gaming mice, this ultra-low latency wireless connection will allow you to reach your potential. WIFI UP TO 615 HOURS*