Very easy but lack of finishing

I did not hesitate because of the price. The usage is really very simple (few buttons, clearly legible display). My initial tests show very bluish flash, correct white balance, or via post.
However, even if the hardware is very simple, I have not received the manual in French by Zele promised in the description, I judge bit correct. Since the takeover, we feel that the equipment is not top quality, what we can understand given the price. Nevertheless, I understood as a plastic noise that comes off when I rotate the flash head (and on both flash that I bought), which is a little scary ... We will see the use if it holds up!