Short answer: a tie on sound quality. Both are rated 3.7/5 (#668 and #666 of 1291 in-ear headphones) at nearly the same price ($49.99 vs $50.99), so choose on features and fit.
Why pick the Arisyn Huo Shu: A budget single dynamic IEM with a 10mm LCP driver and a wood faceplate. The tradeoff: Treble sits about 2.8 dB below target, a dark, relaxed balance.
Why pick the TRN Shell: A budget hybrid with three dynamic drivers and a planar, plus three swappable tuning nozzles. The tradeoff: A 2.15 dB spread from the target still leaves some peaks and dips.
Buy the Arisyn Huo Shu or the TRN Shell on features: they are rated the same for sound quality at close to the same price.
Looking for alternatives? See the complete Headphones rankings.
A budget single dynamic IEM with a 10mm LCP driver and a wood faceplate.
Amazon $49.99 eBay
A budget hybrid with three dynamic drivers and a planar, plus three swappable tuning nozzles.
Amazon $50.99 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Arisyn Huo Shu | TRN Shell | |
|---|---|---|
| Price | $49.99 | $50.99 |
| Ranked | #668 of 1291 in In-Ear Headphones | #666 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Hybrid |
| Drivers | 1 x 10mm dynamic (LCP) | 3 x dynamic + 1 x 6mm planar |
| Impedance | 32 ohms | - |
| Sensitivity | 103 dB @ 1 kHz | - |
| Harman Preference Score | 70 (median of 8 squig.link measurements, calibrated to AutoEQ) | 70 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.54 dB standard deviation | 2.15 dB standard deviation |
| Tonal Tilt | +0.15 (negative is warmer, positive brighter) | -0.61 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.4 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+0.4 dB at 30 Hz) |
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 Arisyn Huo Shu from aftersound, bassaudio, digaoreviews, fernandagunsan, jaytiss, pw, soundcheck39 and soundignity; the TRN Shell from atechreviews, audioamigo, digaoreviews, eplv, soundcheck39 and tonedeafmonk, all via squig.link.
Related Headphone Comparisons
More worthwhile head-to-heads for TRN Shell: