The ultimate everyday notebook is better than ever. MacBook Air now features the latest Intel processors and graphics, faster flash storage, and a 720p FaceTime HD camera. All packed into a notebook that's incredibly thin and light. With up to 60 percent faster graphics performance, it makes everything you do feel quicker and more fluid than ever. And the latest flash storage is up to 4x faster than a traditional hard drive, making MacBook Air remarkably responsive. Thin, light, durable design High-resolution display OS X Lion Up to 7 hours of battery lifeSpecifications Intel Core i5 1.8GHz Dual-Core Processor with Turbo Boost up to 2.8GHz 3MB Shared L3 Cache 4GB of 1600MHz DDR3L onboard Memory 256GB Flash Storage 13.3-inch (diagonal) high-resolution LED-backlit glossy Widescreen Display, 1440 by 900 resolution Intel HD Graphics 4000 (Dual display and video mirroring - Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on an external display, both at millions of colors) 802.11n Wi-Fi wireless networking; IEEE 802.11a/b/g compatible Bluetooth 4.0 SD Card Slot 720p FaceTime HD Camera Integrated Stereo Speakers and Omnidirectional microphone Full-size backlit keyboard with 78 (U.S.) including 12 function keys and 4 arrow keys (inverted T arrangement) with ambient light sensor Multi-Touch trackpad for precise cursor control; supports inertial scrolling, pinch, rotate, swipe, three-finger swipe, four-finger swipe, tap, double-tap, and drag capabilities Connections & Expansions - 2 x USB 3.0, Headphone (Support for Apple iPhone headset with remote and microphone), and Thunderbolt (Native Mini DisplayPort output) Power - 100V-240V AC, 50-60Hz Unit Dimensions (WxHxD) - 12.8 x 0.11-0.68 x 8.94 inches (32.5 x 0.3-1.7 x 22.7 cm) Unit Weight - 2.96 pounds (1.35 kg)