The Ipods compatable are listed below but also works a treat with my 3G Nano and will probably work with others too.
Lightweight and portable fuel for your iPod, Nano and Mini. Sleek enough to complement the iconic styling of the iPod, the compact charger is lightweight and travels easily. Includes one set of Energizer Lithium AA batteries. Acts as a stand too. Made for: iPod 5th Generation (Video) 30GB, 60GB, 80GB iPod nano 1st Generation: 1GB, 2GB, 4GB 2nd Generation: 2GB, 4GB, 8GB iPod 4th Generation 20GB, 30GB, 40GB, 60GB iPod mini 1st Generation 4GB, 6GB