Officially this is an electric 4 string Mandolin, hence Mandobird IV, however you can tune it to be a Concert Ukulele, (you need to put on lighter gauge strings if you want re-entrant tuning). This is the closest Ukulele size instrument I could find to resemble the Gibson Firebird/Explorer Guitar body shape. It's the same basic size but the neck is much thinner so the gaps between strings are smaller making it a little harder to play; but easier to barre. So with the other Ukuleles I have that pay homage to classic electric Guitars this makes a good addition to the corner.
I have tuned my Mandobird as a Ukulele with a low G as this doesn't require a string change however I may get a .010 gauge string and try it with re-entrant tuning one day
I always think of Mandolins as having 8 strings and you can get an 8 string version of this called the Mandobird VIII so I feel justified in treating this as a Ukulele not a Mandolin. I may get a proper 8 string Mandolin one day but it will be a more traditional shape and I would treat this as a Mandolin.
The 4 string version came in a number of colours (though the 8 string version only comes in Vintage Sunburst) including two different shades of gold and a green one that isn't in the picture. These had already been discontinued when I got mine so sunburst was the only option but its nicely done though
Epiphone have now discontinued this line altogether so I'm glad I got one because its very nice and they are getting rarer