Sony MDR-AS400IP/B - Active Sports - headset - in-ear - over-the-ear mount - wired - black

from MrCoco

While it fulfills its main purpouse, i´ve found it's a bit complex to insert ear and adjust. it might be helpful for small-eard users, but on average ear usears it's not that easy. it doesn't take you a long, but still. if for whatever reason fells off while you are running, you have to stop for ...

from Ksruns

Spring was a disappointment. I don't know if my ears are big or small but once spring came and I took my hats off (I wear the night watch type that cover the ears) during my runs the buds would not stay in place. No matter how tight the loops were. I was constantly pushing the bud part back in.

from Lilpepr

While you don't want to wear these on a long airline flight (they don't feel too good if leaning against a plane seat, trust me), these are terrific for the small-eared runner. Once on, they don't budge, and the sound quality is excellent.