I ordered two also via aliexpress. It took from the end of May to yesterday (July5) to finally get them. There was a whole problem where they have to "validate" your credit card and it looked very shady. Checked this nearly daily and was surprised when they did in fact show up.
Both bubble wrapped in a tyvek bag, final carrier US post office "e-packet"
One works, the other does not :-( Both are red and they did not have titanium to match my own MX. I could not figure out how to get the sounds until I can back to read instruction above!
Now to fix the 2nd one so my grandchildren can have fun. The working one however is for *my* desk.