The Leap Motion Controller is sleek， light， and tiny (it��s just 3" long). It takes up hardly any space on your desk， but you use the space above it.Features:The Leap Motion Controller senses your hands and fingers and follows their every move.It lets them move in all that wide-open space between you and your computer. So you can do almost anything without touching anythingIt's the tiny device that just might change the way you use technology.It's a super-wide 150�� field of view and a Z-axis for depth. That means you can move your hands in 3D， just like you do in the real world.The Leap Motion Controller can track your movements at a rate of over 200 frames per second. Minimum System Requirements:Windows 7 or 8 or OS X 10.7AMD PhenomTM II or Intel? CoreTM i3 / i5 / i7 Processor2 GB RAMUSB 2.0 portInternet connection Package Includes:1， Leap motion Controller2， 2 custom-length USB 2.0 cables3， Welcome card4， Important Information guide