I saw them on social media once where 2 people tried them here in Germany. Some girl had a Justin Bieber song on hers and the guy had Michael Jackson playing. I saw them in a store today, but it made me uncomfortable for some reason cause the packaging said "enjoy KPop Music from your mouth" eeeeeehhh what? And the KPop one was the only thing they had lmao ... I was in T.K.Maxx tho ... I was close to consider purchasing it for fun just to know what song or songs (IDK if there is 1 ore multiple on it) are on there but I didn't cause 7€ is a bit much
Apparently it works like this: you stick the lolli into your mouth and than hear music like with earphones, so nobody other than you can hear it