Short answer: the HZSOUND Luna. It ranks #808 of 1291 in-ear headphones by sound quality, rated 3.5/5, at $29.99; the Twistura Delta ranks #856, rated 3.4/5, and costs $32.99, so there is little reason to consider the other one.
The case for the HZSOUND Luna: A broadly balanced tuning with a preference score of 68 against the Harman target. The catch: Treble about 2 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
What the Twistura Delta does well: A broadly balanced tuning with a preference score of 67 against the Harman target. Watch for: An uneven response, 2.3 dB standard deviation from target.
Buy the HZSOUND Luna. It is rated higher for sound quality than the Twistura Delta and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Headphones rankings.
A broadly balanced tuning with a preference score of 68 against the Harman target.
Amazon $29.99 eBay
A broadly balanced tuning with a preference score of 67 against the Harman target.
Twistura $32.99 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
| HZSOUND Luna | Twistura Delta | |
|---|---|---|
| Price | $29.99 | $32.99 |
| Ranked | #808 of 1291 in In-Ear Headphones | #856 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 68 (median of 7 squig.link measurements, calibrated to AutoEQ) | 67 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.31 dB standard deviation | 2.30 dB standard deviation |
| Tonal Tilt | -0.69 (negative is warmer, positive brighter) | -0.74 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.7 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+0.0 dB at 30 Hz) |
| Connection | Wired (3.5mm) | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 Dynamic (10mm flat diaphragm) | 1 x 10mm dual-magnet dynamic driver (LCP diaphragm) |
| Impedance | - | 42 ohms |
| Sensitivity | - | 120 dB/Vrms |
| Frequency Response | - | 8Hz - 21kHz |
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 HZSOUND Luna from audioamigo, eplv, pw, soundcheck39, theaudiostore, tonedeafmonk and treblewellxtended; the Twistura Delta from audioamigo, boizoff, theaudiostore and tonedeafmonk, all via squig.link.
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