Got this IEM earlier today. Nobody seems to discuss of care about them maybe because they look like cheap plastic but i have to say this is by far the most comfortable IEM with the best fit that i've owned.
They look cool to me in terms of design with very lightweight shells, i almost don't feel like i'm wearing anything in my ears and they got the memory wire part just so right that none other around ear fit IEMs were able to provide. The memory wire is just soft and flexible which sits comfortably around my ears and the cable is soft as well with very lightweight. Probably they design it in a way to make it ideal for sports and IMO they made it right.
Because of the ergonomic design of the shells, they isolate really well while i'm transiting to work earlier and their sound although nothing spectacular to make it a giant killer, is very good in its own class price-performance wise.
Overall they have a V shaped signature with well-extended treble which is a bit bright and bass that goes deeper than my current driver (xiaomi pro hd). Bass is on the slower and softer side when compared to the Xiaomi but has more quantity when going up. The bass bleeds ever so slightly into lower midrange but not to the point that it will distort or affect the clarity of midrange.
Midrange is recessed as compared to lows & highs. Lower midrange is fuller sounding when compared to upper midrange which sounds a bit thin when i'm listening to female vocals but overall is warm and smooth, not fatiguing to listen to.
Treble is quite bright. At some instances i noticed the cymbals sounded a little too splashy and not so refined in texture especially when there're too many instruments playing at the same time in the mix but still ok for me to not calling it harsh.
Just in case anyone's interested in it, i personally think this at its current price tag of 98RMB at Taobao is really a good deal, at least it beat the crap out of the DZAT DT05. As usual YMMV.