ER-4S. Those came out with ear wax all over them. Especially if you used the foam tips.Airpod doesn't go in the ear canal it rests in the concha.
Have used earbuds in the past and found out.
A: they don't sound great.
B: when one of them fits in my left ear it won't stay properly in place on the left ear.
C: am not an apple aficionado.