Headphones
The headphones shown below are of rather average sound quality and should be replaced with better ones if you want to experience the full quality of the Nomad Jukebox.
Creative calls them 'backphones', because they wrap around your neck rather than you head, which makes them a bit more comfortable to wear.
Batteries
As you could see, Creative provides two sets of rechargeable 1600 mAh AA NiMH batteries with the Nomad Jukebox, which I consider as rather thoughtful. The batteries are of course one major factor that makes the Jukebox so much heavier than a portable CD-player, but they are necessary to provide the four hours of playtime per battery set. You can recharge the batteries either with a not-included battery charger, or within the Jukebox while it's hooked up to the external power supply.