Apple has discontinued the iPod Nano and iPod Shuffle.
List of iPod models, Apple Wiki
Apple Unveils New iPod shuffle
Apple announces new iPod touch, nano, shuffle, classic; iTunes 9
Apple axes iPod nano and shuffle
Apple leaks new gold, deep blue and hot pink iPod colors in iTunes 12.2
Apple iPod nano 5TH Generation 8GB Green Needs Battery
Apple has killed off the iPod Nano and Shuffle and nostalgic tech fans are heartbroken
Apple iPod experience it all.
Apple iPod nano With Built-in Video Camera (5th Generation, 2009)
Apple is officially killing the iPod Nano and iPod Shuffle
Shuffle, Nano, Touch: Two Decades of the Apple iPod