Bought this for around $70RMB. I must say of all the cheap earbuds this is one are the better one. I have bought many cheap earbud and bluetooth headset.
But this has balance Bass and Treble. Most chinese made earbuds are very weak on the Bass side. Very strong Treble and Voice but the Bass seems weak.
These earbuds are balance. I don’t have an expensive product to compare on but my is wife is a musician. When she is using it, I think it quite good. My two cents.