In this video I review the Hidition Viento B, a Korean-made IEM that’s still pretty under-the-radar in North America and Europe—and honestly, part of the “experience” is figuring out how to order it from Hidition’s site. The unit I reviewed was loaned to me by a viewer (huge thanks), and it’s the universal version with a custom-to-order shell design. Specs-wise it’s a 4 balanced armature IEM (no dynamic driver), and it typically lands around the $800–$900 range depending on how you configure it. Sound-wise, the Viento B is basically what I’d call the direct upgrade to the Etymotic ER4XR. You get a Harman-ish bass shelf (about 5–6 dB starting down low and flattening by ~100 Hz), that classic Etymotic-style neutral/diffuse-field midrange, and an in-line treble with genuinely great air above 10k. It’s very resolving for the price—competitive with sets like Andromeda and Sony IER-M9—and it handily out-resolves the Blessing 2, with sharper transients and faster attack/decay. The tradeoffs are real though: BA bass is still BA bass, so slam and rumble are weak, and timbre is noticeably BA even if it’s better than ER4. Comfort was also a problem for me on the universal shell due to a thick curve that hit my ear awkwardly. Still, if you want near-perfect tuning with top-tier detail and you can deal with the ordering/fit situation, the Viento B gets my recommendation.