Treat yourself to a comfortable peripheral when you go for the ROCCAT Kone Air gaming-grade mouse. Designed to keep up with your every move, it connects via 2.4 GHz low-latency wireless or Bluetooth. Not only that, but it also offers up to 800 hours of battery life! Just use 2 AA batteries to achieve it. Alternatively, use only 1 battery for less battery life but a lighter weight and easy portability. Moreover, its ergonomic shape has double-injected rubber side grips. This gives you the long-term comfort you need. Additionally, its Easy-Shift[+] duplicator technology expands 9 dedicated buttons into 17 programmable input functions. Made with ROCCAT Titan Optical Switches, they are tested for 100 million clicks. And it has a 19K DPI owl-eye optical sensor as well as heat-treated 100% pure PTFE glides.