One look and it's clear: With over 4 million pixels on the 13" model, the Retina display on MacBook Pro is an incredible engineering feat. Whether you're retouching professional photography or editing a home movie in HD, all those pixels give your images a level of clarity you've never seen on any notebook - or any computer, for that matter. With colors so rich, vibrant and details so sharp, it's a display worthy of the world's most advanced notebook. 13.3-inch (diagonal) LED-backlit Retina display with IPS technology, 2560 by 1600 resolution Intel Iris Graphics 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible Bluetooth 4.0 SDXC Card Slot 720p FaceTime HD Camera Integrated Stereo Speakers and Dual microphones 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 Thunderbolt ports, 2 x USB 3.0 ports, HDMI port, Headphone port & MagSafe 2 power port Battery - Built-in 71.8WHr Lithium Polymer Battery (up to 9 hours wireless web) Power - 100V-240V AC, 50-60Hz Unit Dimensions (HxWxD) - 0.71 x 12.35 x 8.62 inches; 1.8 x 31.4 x 21.9 cm Unit Weight - 3.46 pounds; 1.57 kg