Festures:<br> <br> Ergonomic Right Handed Design with Rubber Painting Surface that can keep your grip firm during gameplay.<br> Power-saving, high-accuracy Delta Zero sensor technology<br> Performance and Endurance modes maximize battery life<br> Long-life buttons rated to 50 million clicks<br> For Windows 8, Windows 7, Windows Vista, and Mac OS X 10.6.8 or higher<br>