These are marketed by a company called Tekxon.
Here is their website.
If the information you want is not here, you will have to contact Tekxon in Taipei Taiwan China by email.
Click their link called "contact us".
ok, ive heard that the Megxon m500 and the Megapix pmp5 are the same thing, but when i did a search for both i got two different(in some ways) pictures.
One had the stickers on the front(showing some of the features) and said "megxon m500" and the other had no stickers and no words on the front.
Also, I have seen some that instead of a music symbol on the right side by the button on the back, there was a heart.
Are there any real differences between these? Or are they all the same, but just look different?
Oh, and one other thing, I also found one that was a "mx500" is that any differnt that the m500?
Sorry for so many questions, but I just wanted to clear all that up.