The audio is pretty low in volume, even when I pump up the source-audio and the buttons on the headphones. Beside of that, the sounds lacks dynamic; there is not enough difference between bass and treble. It all sounds a bit dull.

On time delivery. Great product

Very good!

Hi, I had received the headphone and used for few weeks. build, sound quality is good, but the mic (for calls) does not work properly and the call/music too gets disconnect (even hearing) while running or jogging.

Good:
-They arrived in less than a month
-They are very very comfortable (at least for me, they were even more comfortable than the AH2s)
-They connect and disconnect very swiftly
-TF music play works great
-Tons of hours in bluetooth mode
-Detachable cable jack

Cons:
- They are too bassy (even more than the AH2)
- Some frequencys sounds muffled... I don't know if they are bad soldered, maybe the plastic is too cheap or the drives are just not good enough.
- Although they look big, they are on ear headphones

It seems they can become much better with a proper burning method,

I would give them the 5 stars if the sound were at least as good as the AH2's (and just because the ah2s were cheaper than these ones).