It goes where no device has gone before.

With a wave of a hand or lift of a finger, you’re about to use your computer in a whole new way. The Leap Motion Controller senses how you move your hands the way you naturally move them. So you can point, wave, reach, and grab. Even pick something up and put it down. Just like in real life. It’s an amazing device for the things you do every day and for things you never thought you could do

Check it out on https://www.leapmotion.com

Mac OS X Mouse cursor