"hmm i'm gonna buy this item. let see, oh on this website it states you turn it on with a key and it does this. ok, well it doesn't show or say anything on there about a key. hmmm maybe i should pm him and ask if he has the key."
also did he ever reply to you? did maybe he forget to put the key in there ( i had this happen with my nak cd player where the guy forgot something, i pm'd him and a few days later he got back to me and sent them out.) do you think you waited long enough before calling him a scammer?