Summary: This is my ultimate choice for the budget,my 3rd one is here (lost one and broke the other one).Good overall sound and fit for budget plus reliability.The Bass is a bit overwhelming at times (not very sharp) but you get used to it after sometime.IT SOUNDS BETTER AFTER ABOUT TWO WEEKS OF USE.
Pros: Great Sound for the price , Bass ,Price,reliability ,built
Cons: uncomfortable at times (Sleeping), the base is not as crunchy as some other sony models, could be cheaper.
Summary: I bought this at the Sony Store and regretted by purchase for the first two days. They were very dull sounding. I found myself searching for eq setting to get some high frequency response. But on the third say I noticed the treble opening up. Previously select EQs became to bright.
Summary: These iems are better than some entry levels (Shure 215/ hifiman RE0/ RE 400/ Sennheiser CX300) with a wider soundstage due to the 13mm dynamic driver , however need serious burn in for at least 50 hours to shine , lack sub bass and treble , perfect with vocals (Norah Jones / Yael Naim/ Celine...
Pros: level of details, vocals, soundstage
Cons: poor treble, need burn in for at least 50 hours , muddy with bad recordings
Summary: here's a weird thing about them: these sounds punchy and more enjoyable if worn around the ear (worn somehow like se215), if worn normally, these sound little bit muddy and mainstream, unrefined and lacks punch. i don't know why, but it's true (might not work for you, don't blame me).
Summary: lack of high fidelity sound, bass it way overwhelmed hinder the mid and high, there's a mid hump bass, not good enough sub-bass, no punchy drum bass pedal. don't buy it, it's not worth it. even philips she3595 is so much better when using EQ in poweramp app for android. lol