I got an upgraded FUNSR1 a while ago the 2.0 one or whichever the newest one is and when I use it I notice a metallic ish smell like something semi toxic the best thing I describe it to is if you sniff a nintendo switch. My Handy 1 did not have this smell so I don’t know if this is normal and while the FUNSR1 is quieter than the Handy 1 there is still a prominent noise for me mainly the fans and not the actual movements.