Short answer: a tie on sound quality. Both are rated 4.3/5 (#238 and #191 of 1291 in-ear headphones) at nearly the same price ($69 vs $73.99), so choose on features and fit.
What the Harmonic Empire Xiao Qiao does well: A semi-open single dynamic IEM that measures very close to the Harman target (score 77 across seven measurements), with bass and treble each within 1.4 dB of it. The tradeoff: The semi-open design leaks sound and isolates less than sealed IEMs, so it is a poor choice for commuting or noisy places.
The case for the Hidizs MK10: The median of 4 hobbyist measurements gives it a very good Harman preference score of 78 with a 1.57 dB spread. The tradeoff: An 8 dB peak near 8.2 kHz can make cymbals and sibilance sound sharp.
Buy the Harmonic Empire Xiao Qiao or the Hidizs MK10 on features: they are rated the same for sound quality at close to the same price.
Still deciding? The full Headphones rankings cover every ranked option.
A semi-open single dynamic IEM that measures very close to the Harman target (score 77 across seven measurements), with bass and treble each within 1.4 dB of it.
Amazon $69.00 eBay
The median of 4 hobbyist measurements gives it a very good Harman preference score of 78 with a 1.57 dB spread.
Amazon $73.99 eBayPrices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Harmonic Empire Xiao Qiao | Hidizs MK10 | |
|---|---|---|
| Price | $69.00 | $73.99 |
| Ranked | #238 of 1291 in In-Ear Headphones | #191 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm graphene dynamic | 1 x 10mm dynamic |
| Sensitivity | 111 dB | 113 dB |
| Harman Preference Score | 77 (median of 7 squig.link measurements, calibrated to AutoEQ) | 78 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.60 dB standard deviation | 1.57 dB standard deviation |
| Tonal Tilt | -0.41 (negative is warmer, positive brighter) | +0.12 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.5 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.1 dB at 30 Hz) |
| Impedance | - | 32 ohms |
| Frequency Response | - | 20Hz - 40kHz (Manufacturer specified) |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the Harmonic Empire Xiao Qiao from aden, aftersound, audioamigo, bassaudio, csi-zone, soundcheck39 and soundignity; the Hidizs MK10 from ankramutt, digaoreviews, fahryst and tdl, all via squig.link.
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