Pros: Very Decent SQ, PRICE OMG
Cons: Bad baad cable (tangle prone, don't seem durable), Not the most comfy, No accessories at all
The true budget IEM king!
First of all, there are no accessories and packaging. The IEM comes in a plastic wrap. That's that. Can't complain for $7 though.
The housing is a big, bulky shiny plastic. OK for the price. For me comfort is not bad at all, but for those who have smaller ears comfort will be an issue. Get another pair of eartips cos the stock ones are not so good. I use Meelec tips stuffed with Comply foam.
The worst part: cable. Super tangle prone, kinks, and no chin slider.
But... the sound! You can't get any better sq for even 5-10 times the price.
Bass: Has a decent impact and control, but lacking extension. Overall it is still enjoyable for most tracks.
Mids: Unexpectedly smooth and fairly detailed.
Highs: Fair amount of sparkle and detail, but again, lacks extension.
Soundstage: It is wide, but not really deep.
Overall the 8320 is a very nicely balanced sounding IEM which worth much more than its price. Since it is very cheap, it is good to keep more than 1 for backup, practising recabling, try out stuff.