The website is all written in bad Chinglsih. It's difficult to know exactly what you're getting. Fortunately I'm very good at figuring this stuff out usually can decipher product features etc.
Cheap Chinese junk. That's what's being sold here. However, knowing that, I still bought some VERY cheap items and they all worked satisfactorily... some high output flashlights, memory cards etc.
I did take a chance and buy a $162 head unit for the GPS function and the backup camera function. After installing found out the DVD / CD player did not work and would not eject a disk. Fine, I wrote them...
Here's where the nightmare began. If you've ever had to deal with the Chinese, they do not like to give back money. They will do exchange but only if YOU pay return shipping. It's taken me months sometimes to deal with people in China. These people are no different. Also, they dob't speak English even passably, so communications are almost impossible... either that, or they're playing "country dumb".
Regardless, I'm never buying from these people again. Cheap Chinese crap can be bought everywhere these days, and I can get mine from someplace else.