once again YZ thanks for the video
but i am afraid i am still not convinced this is a rue ipod style wheel
i see what you are doing in the video and it certainly looks as though it works in a similar way but i am sure that, underneath the wheel is noting more than touch sensitive buttons like on teclast players etc..
you will forgive our skepticism on this site but we are used to claims on these players being some what exaggerated or even totally false (fake memory size is a biggee)
if you truly have an ipod like touchwheel in this device then send one to admin on this site and let him review it, it would do you no harm to do this and would be great for you as a supplier to have the seal of approval from this very respected site
BTW one of the reasons people on this site are a little wary of claims like this is demonstrated on your web site on the following page about the model M2003
http://www.yzdigital.com/ProductsView.Asp?id=53
here you show a pic of a meizu M6 and right below that pic a different player altogether.
things like this make us suspect people like you are not as honest as you may be. i suggest you take your own pics of your players rather than picking up images that we have seen all over the web for last couple of years