Up to 9 Hours of Battery Life, OS X Mountain Lion 1.3 GHz Dual-Core 4th-Gen Intel Core i5 Processor (Turbo Boost up to 2.6 GHz) 11-Inch LED-backlit Display; 1366×768 Resolution; Intel HD Graphics 5000. 128 GB Flash Storage, 4 GB 1600 MHz LPDDR3 Memory Line voltage 100-240V AC