This review is very helpful to answer all of your questions...including pictures of all accessories and all angles of Ipod 5. Included setting info for converting from one format to another to play on Ipod 5.
Hope this helps! Geof
http://arstechnica.com/reviews/hardware/video-ipod.ars
great link. thanks Geof. And It is a pity that the battery seems not to be replaced due to the architecture (in my homeland, there is no battery replacement service provided by Apple, shame! And I have to replace it by myself. ). At first I planned to order one for myself and my brother, and now, may be I should go back to 4G ipod.