Moondrop MOONDROP-CHU-II

The Moondrop CHU II delivers shockingly good sound for around $23 USD, with clear mids, punchy bass, and a metal build that feels premium. Sound quality is the star here, landing in the 69th percentile overall. But durability is a real concern, and the mic is basically useless. Worth buying if you want great audio on a budget and don't need it to last forever.

The 10mm dynamic driver with the Al-Mg alloy dome delivers a frequency response of 15Hz to 38kHz, which is absurdly wide for this price. Sensitivity sits at 119dB/Vrms with an 18Ω impedance, so it's easy to drive from basically anything, a phone, a dongle, a potato. Sound quality lands in the 69th percentile in our database, which is solid, especially when you remember this thing costs less than a pizza. The V-shaped tuning means vocals stay clear while bass gets a little extra thump. Distortion is rated below 0.05%, so you're getting clean output even at higher volumes. But the mic is basically an afterthought at the 12th percentile, and connectivity is wired-only, which tanks that score to the 13th percentile. Fine for music, useless for calls.

Against the Soundcore P31i and EarFun Air Pro 4+, the CHU II is a completely different animal. Those are wireless buds with ANC, mics, and batteries. The CHU II is a wired IEM with zero features and one job: sound good. And it does that better than most wireless buds in this price range. The Anker Space A40 and JLab JBuds Pods ANC offer convenience and noise cancellation, but their sound quality doesn't touch what Moondrop squeezed out of this 10mm driver. The Baseus Bass BP1 Pro is closer in spirit, but still wireless with all the compromises that brings. If you want features, buy wireless. If you want pure sound per dollar, the CHU II wins.

At $23 USD, this is a no-brainer for anyone curious about IEMs. In Europe, prices bounce around between EUR 25 and EUR 37 depending on the store, with the best deal on the DE listing at EUR 25. The value proposition is simple: you're getting sound quality that competes with buds three times the price, wrapped in a metal shell that feels more expensive than it is. The trade-off is long-term reliability. If you treat these as a disposable entry point into wired audio, they're fantastic. If you expect them to last years, temper your expectations.

The Moondrop CHU II is a wired IEM that punches way above its price tag. For around $23 USD, you get a 10mm dynamic driver with an aluminum-magnesium alloy diaphragm, a metal alloy shell, and a detachable cable. That's a spec sheet you'd normally see on buds costing three or four times more.

Sound-wise, it's a slightly V-shaped tuning with clear mids and crisp highs. Bass has punch without drowning everything else. It's not the most resolving IEM out there, but for the money, it's genuinely impressive. The catch? Build quality and long-term durability are where corners got cut.

Skip these if you need a mic for calls or video meetings, the mic quality is genuinely bad, sitting at the 12th percentile. Also skip if you want wireless convenience or ANC, because these have neither. And if you live somewhere humid or plan to use them while working out, the corrosion reports on the nozzles are a red flag. These are for music listening at a desk or on a commute, not for everything else.

The Moondrop CHU II is for budget-conscious listeners who care about sound quality above all else. If you're new to IEMs and want to see what the hype is about without spending real money, this is the entry point. It's also great for anyone who wants a beater pair for commuting or travel where you don't want to risk expensive gear. Just don't expect it to be your daily driver for calls or to survive years of abuse.