NeonHD
100+ Head-Fier
Hey guys I recently did a cool short unboxing video on the KZ ZS3E, feel free to check it out!
As for the IEMs themselves, well, let's just say the ZS3 is pretty bad in today's chi-fi standards. But 3 years ago I'm sure they would've been considered decent.
The only thing that isn't bad, however, is their incredible noise isolating ability. I've heard this from many people and I have to say it's true, these are literally earplugs! They definitely isolate well over 30db, maybe even more. So if you hate foam earplugs and need something else, get the ZS3!
And if you want better sound quality then just go for the ZS4 and you'll basically have an earplug that plays music!