Problem with my Shuffle...Need help...

Hi guys,
I recently got an iPod Shuffle(2nd Gen, Model-A1204) free, along with a Canon camera that was purchased in Dubai. But I have noticed a few things and I am not sure if the iPod is an original. Please advise.

1) There is no shuffle button.
2) There is no bundled dock in the package. Does a dock come free along with the iPod?
3) I transferred an MP3 file directly into the iPod without the help of iTunes i.e I transferred the file like I would transfer a file to any USB device. And the MP3 file played well without any problem.
4) In the gallery on Apple website, the socket for headphones and the ON/OFF switch are on opposite sides whereas on my iPod they are on the same side.