Short answer: the Kinera Celest Wyvern Abyss. It ranks #577 of 1368 in-ear headphones by sound quality, rated 3.8/5, at $29.99; the Moondrop Space Travel 2 ranks #704, rated 3.6/5, at $29.99. With prices this close, go by the sound-quality ranking rather than the cost.
The case for the Kinera Celest Wyvern Abyss: The median of 15 hobbyist measurements gives it a solid Harman preference score of 71 with a 2.07 dB spread, and its mids sit within about 0.8 dB of target, so vocals and instruments sound natural. Watch for: Its 2.07 dB spread is less even than the best measured sets.
What the Moondrop Space Travel 2 does well: The median of 15 hobbyist measurements gives it a solid Harman preference score of 69 with a 2.45 dB spread, and its mids sit within about 1.3 dB of target, so vocals and instruments sound natural. Watch for: Presence sits about 4.5 dB low with a 10.9 dB dip near 10.9 kHz, so vocals and instruments lose some bite.
Buy the Kinera Celest Wyvern Abyss. It is rated higher for sound quality than the Moondrop Space Travel 2 at the same price, so only choose the other one for a particular feature it does better.
Still deciding? The full Headphones rankings cover every ranked option.
The median of 15 hobbyist measurements gives it a solid Harman preference score of 71 with a 2.07 dB spread, and its mids sit within about 0.8 dB of target, so vocals and instruments sound natural.
Amazon $29.99 Linsoul $29.99 eBay
The median of 15 hobbyist measurements gives it a solid Harman preference score of 69 with a 2.45 dB spread, and its mids sit within about 1.3 dB of target, so vocals and instruments sound natural.
Amazon $29.99 eBayPrices on this page were last checked October 17, 2026 at 6:04 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
| Kinera Celest Wyvern Abyss | Moondrop Space Travel 2 | |
|---|---|---|
| Price | $29.99 | $29.99 |
| Ranked | #577 of 1368 in In-Ear Headphones | #704 of 1368 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | True wireless |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 13mm dynamic |
| Impedance | 32 ohms | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 20Hz - 20kHz |
| Harman Preference Score | 71 (median of 15 squig.link measurements, calibrated to AutoEQ) | 69 (median of 15 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.07 dB standard deviation | 2.45 dB standard deviation |
| Tonal Tilt | -0.69 (negative is warmer, positive brighter) | +0.07 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.6 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-5.5 dB at 30 Hz) |
| Sensitivity | 105 dB | - |
| Bluetooth Version | - | 6.0 |
| Bluetooth Codecs | - | SBC, AAC |
| Battery Life | - | 7 hours (earbuds), 31 hours with case |
| Active Noise Cancelling | - | Yes |
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 Kinera Celest Wyvern Abyss from aftersound, audioamigo, awsmdanny, banzai1122, boizoff, cammyfi, csi-zone, dl, eplv, fahryst, harpo, hobbytalk, jaytiss, koi, kr0mka, kuping-sensi, mmagtech, obodio, pw, silicagel, soundcheck39, soundignity, superreview, tdl, treblewellxtended and vortexreviews; the Moondrop Space Travel 2 from aftersound, atechreviews, boizoff, csi-zone, dhrme, fernandagunsan, filk, hu-fi, jaraba, listener, lown-fi, practiphile, regancipher, soundignity and superreview, all via squig.link.
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