The thing which amazes me a lot is the size...very small...very portable...single driver....yet to sound this good. It almost is non existence for below 200$....even some dual dynamics can hardly produce what these little guys can.
Another amazing thing is if you play with your Eq, you can pump the bass up to the max, and your S-018 will take it like a champ...while not destroying other frequencies.
Last amazing thing....price !!!!
The latest trend, it seems people already forget the purpose of an IEM...portability.....they keep getting bigger and bigger...what is the point while the sound quality cant get there to off set the sacrificial of the size and portability.