Short answer: a tie on sound quality. Both are rated 4.0/5 (#420 and #408 of 1291 in-ear headphones) at nearly the same price ($17.85 vs $19.99), so choose on features and fit.
Why pick the CVJ Konoka: The median of 10 hobbyist measurements gives it a solid Harman preference score of 74 with a 2.17 dB spread. The tradeoff: A 5.3 dB peak near 2.0 kHz can make cymbals and sibilance sound sharp.
What the KZ ZVX does well: The median of 17 hobbyist measurements gives it a solid Harman preference score of 74 with a 1.82 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. Watch for: A 5.7 dB peak near 8.2 kHz can make cymbals and sibilance sound sharp.
Buy the CVJ Konoka or the KZ ZVX 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.
The median of 10 hobbyist measurements gives it a solid Harman preference score of 74 with a 2.17 dB spread.
AliExpress $17.85 eBay
The median of 17 hobbyist measurements gives it a solid Harman preference score of 74 with a 1.82 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural.
Linsoul $19.99 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
| CVJ Konoka | KZ ZVX | |
|---|---|---|
| Price | $17.85 | $19.99 |
| Ranked | #420 of 1291 in In-Ear Headphones | #408 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Hybrid | Dynamic |
| Drivers | 1 x 10mm dynamic + 1 x balanced armature + 1 x vibration (haptic) driver | 1 x 10mm dynamic |
| Impedance | 28 ohms | 25 ohms |
| Frequency Response | 10Hz - 40kHz | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 74 (median of 10 squig.link measurements, calibrated to AutoEQ) | 74 (median of 17 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.17 dB standard deviation | 1.82 dB standard deviation |
| Tonal Tilt | +0.01 (negative is warmer, positive brighter) | -0.56 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.4 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.5 dB at 30 Hz) |
| Sensitivity | - | 109 dB |
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 CVJ Konoka from aquaphobic, audioamigo, csi-zone, digaoreviews, hbb, hoods, pw, rg, soundcheck39 and soundignity; the KZ ZVX from achoreviews, adri-n, aftersound, ankramutt, bukanaudiophile, fahryst, harpo, hbb, hore, ianfann, musicafe, practiphile, pw, soundcheck39, tdl, timmyv and tonedeafmonk, all via squig.link.
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