Features:- Up to 250 hours of battery life
- Power-saving, high-accuracy Delta Zero sensor technology
- Lag-free gaming-grade wireless
- Performance and Endurance modes maximize battery life
- Long-life buttons rated to 20 million clicks
- 11 programmable buttons for customized game control
- On-the-fly adjustable DPI
- For Windows 8, Windows 7, Windows Vista, and Mac OS X 10.6.8 or higher