iPod nano 2nd Generation

On September 12, 2006, Apple updated the Nano line. The second-generation Nano features scratch-resistant, anodized aluminium casing like the earlier Mini's design; the multiple color choices (silver, green, pink, blue, and black) mirror those of the Mini as well. However, unlike the second-generation Mini, the button labels do not match the color of the Nano. Instead, they are gray, like the first-generation Mini, except for the black iPod which has a black click wheel. The second-generation Nano features "a brighter, more vibrant display",a battery life upgrade (from 14 to 24 hours), and doubled storage sizes with the new 2, 4, and 8 GB models (compared to the previous 1, 2, and 4 GB models).