BONTEMPI - Melodica 20 vs Mouth piano - comparison

This is a comparison of 2 Bontempi toy melodicas: used, old "Melodica 20" versus brand new "Mouth piano".
Bontempi Mouth piano, on website stores is described as a 17 keys instrument, which is wrong. In fact, fully working are 10 white keys only, 7 red keys are fake keys, which are a part of the instrument body.
Melodica 20 - 00:06
Mouth piano - 01:02