MacBook Air is designed to be powerful, capable, durable, and enjoyable to use, with enough battery life to get you through the day. That's the difference between a notebook that's simply thin and light and one that's so much more. Multi-Touch technology is part of practically every Apple product. It's a convenient way to interact with your devices. And the optimal way to experience Multi-Touch on a notebook is through a trackpad. That's precisely the case with MacBook Air. The trackpad's spacious, all-glass surface doesn't have a button because the whole thing is the button. And with multi-touch gestures in OS X, you can interact with MacBook Air in ways that feel more intuitive and realistic than ever before. MacBook Air features a unibody design for both the main enclosure and the display. The unibody construction means a higher-precision, less complex design with fewer parts. That translates to a notebook that's exceptionally thin and light, yet durable enough to handle the rigors of everyday use. In addition, MacBook Air offers innovations you won't find anywhere else.