KZ ED10—solidly built, esp. for the price, with good isolation and fit, though the metal casings are very heavy. Soundwise, these are accurate/uncolored and somewhat W-shaped, with deep, impactful  and tight bass, clear thickish mids and prominent, slightly warm treble. I still prefer the ED9, which have slower bass and a bit less overall clarity but present keys and percussion more realistically and image much better. Soundstage is narrower than average–there’s a bit of a “Wall of Sound” effect which works well for rock but less well for acoustic stuff. They could stand to be a little more open-sounding, but like most KZ they still hit well above their weight.