Specifications: CPU 2.3GHz dual‑core Intel Core i5, Turbo Boost up to 3.6GHz, with 64MB of eDRAM RAM 8GB of 2133MHz LPDDR3 onboard memory Graphics Intel Iris Plus Graphics 640 Audio Stereo speakers with high dynamic range Two microphones 3.5 mm headphone jack Display RETINA DISPLAY 13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 native resolution at 227 pixels per inch with support for millions of colors Supported scaled resolutions: 1680 by 1050 1440 by 900 1024 by 640 500 nits brightness Wide color (P3) Connections Two Thunderbolt 3 (USB‑C) ports with support for: Charging DisplayPort Thunderbolt (up to 40 Gbps) USB 3.1 Gen 2 (up to 10 Gbps) Networking WI-FI 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible BLUETOOTH Bluetooth 4.2 wireless technology Storage 256GB 256GB PCIe-based SSD Configurable to 256GB or 512GB SSD Sizeheight x width x depth (in mm) Height: 0.59 inch (1.49 cm) Width: 11.97 inches (30.41 cm) Depth: 8.36 inches (21.24 cm) Battery Up to 10 hours wireless web Up to 10 hours iTunes movie playback Up to 30 days of standby time Built-in 54.5-watt-hour lithium-polymer battery 61W USB‑C Power Adapter CameraWebcam 720p FaceTime HD camera Weight Weight: 3.02 pounds (1.37 kg)3 Keyboard and Trackpad FULL-SIZE BACKLIT KEYBOARD WITH: 78 (U.S.) or 79 (ISO) keys including 12 function keys and 4 arrow keys Ambient light sensor Force Touch trackpad for precise cursor control and pressure-sensing capabilities; enables Force clicks, accelerators, pressure-sensitive drawing, and Multi-Touch gestures