what version is my Sansa Clip?

I’m going to put Rockbox on my Sansa clip, but there are two versions, how do I find which version I have? 

http://download.rockbox.org/daily/manual/rockbox-sansaclip/rockbox-buildch2.html#x4-70002.1

And you also need to know which version of Clip you have; Original, Clip+, Clip Zip or Clip Sport (not ported to Rockbox as of yet). :wink: