Random Headphone Amp Fujiyama Fiio E06

I recently bought a new set of headphones Audio Techica ATH M-50X and low a behold they came with an unadvertised headphone Amp. Now i for one don't know anything about Amps and DACs at all. Any info on this amp and why my headphones came with an Amp? Is the Amp worth while or is it one of those hidden cheep jems that are good enough for what I need or should I not even bother with it?

Have you tried contacting the seller to ask him about it?

The Fiio amps are meant for mobile use, hence the small form factor. The E06 might not be the best of their sortiment but according to some reviews I skimmed it's not that bad (especially for the price). I personally don't own one of them, in fact I have never owned a DAC/Amp at all, so I can't say anything about the quality.

Ya I got one of these like 2 years ago and did not receive a legit one.  I found out after having it for a while that there are a lot of counterfeit ones for sale.  Even on amazon you have to watch which vendor you are buying from.  The fake ones are know for having battery issues.