This document discusses the Leap Motion technology, a hand and finger motion sensing input device. It begins with an introduction to Leap Motion and its history as a breakthrough in touch-free motion sensing. It then provides the hardware and software specifications required to use Leap Motion. The document explains how Leap Motion works using infrared sensors and cameras to track hand movements. It highlights advantages such as ease of use, portability, and affordability. It concludes by discussing Leap Motion's potential to change computing through natural gesture-based interaction.