Cheap Chinese in-ear headphones

[wong]

Has anyone tried the cheap Chinese "Chi-Fi" in-ear headphones?

I recently bought some MEE audio M6Pro ear phones (thanks Finlandia) and they are great. Then afterwards I stumbled on these cheap (5-10 pound) headphones from China. KZ seem well regarded and I got several pairs (ZS3, ATE, EDR2 and ZS5) all for ~30 pounds. They are much better than the freebies and 10 pound ear buds. I'm no audiophile and wonder if any more experienced users (calling Finlandia) have tried them?

They seem cheaper on Gearbest than Aliexpress.
No affiliation, just a satisfied customer.

[rodericb]

I use Yuin PK3 on my commute to and from work every day. Being ear buds you do need to have the foams on them to seal. My phone (Blackberry Priv) has a Wolfson DAC and a decent amp and the whole lot puts out quite a decent sound. I have read that the xioami pistons are good - they are IEM's however.