Linsoul HZSOUND Heart Mirror Zero In-Ear Earphone IEM with 10mm Carbon Nano Diaphragm, CNC Zinc Alloy Case, Detachable 0.78mm 2-pin Cable for Audiophile Musician (Silver, Without Mic)

Has a bit of demands on the headphone amplifier to sound really good, and can be a tad harsh in the higher registers. Superb fidelity and resolution though and suits me to a T.

The Heartmirror Zero are a competent IEM for their price, but there are better tuned IEM's out in the price range,(Kiwi Ears Cadenza for example). They aren't the best or worst, more middle of the road, at least tuning wise.They are built quite well, so could potentially last a few years, if properly cared for.Not the best sound stage, or imaging in the price range either.They do benefit from a little EQ or a good DAC.