Short answer: the Melody Wings Jupiter. It ranks #451 of 1291 in-ear headphones by sound quality, rated 4.0/5, at $78; the EarFun Air Pro 4 ranks #515, rated 3.9/5, and costs $79.99, which makes this an easy call rather than a real tradeoff.
The case for the Melody Wings Jupiter: The median of 5 hobbyist measurements gives it a solid Harman preference score of 73 with a 1.79 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural. The catch: A 6.4 dB peak near 8.2 kHz can make cymbals and sibilance sound sharp.
The case for the EarFun Air Pro 4: The median of 5 hobbyist measurements gives it a solid Harman preference score of 72 with a 1.98 dB spread, and its mids sit within about 0.7 dB of target, so vocals and instruments sound natural. Watch for: Its 1.98 dB spread is less even than the best measured sets.
Buy the Melody Wings Jupiter. It is rated higher for sound quality than the EarFun Air Pro 4 and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Headphones rankings.
The median of 5 hobbyist measurements gives it a solid Harman preference score of 73 with a 1.79 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural.
Bloom Audio $78.00 eBay
The median of 5 hobbyist measurements gives it a solid Harman preference score of 72 with a 1.98 dB spread, and its mids sit within about 0.7 dB of target, so vocals and instruments sound natural.
Amazon $79.99 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
| Melody Wings Jupiter | EarFun Air Pro 4 | |
|---|---|---|
| Price | $78.00 | $79.99 |
| Ranked | #451 of 1291 in In-Ear Headphones | #515 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 73 (median of 5 squig.link measurements, calibrated to AutoEQ) | 72 (median of 5 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.79 dB standard deviation | 1.98 dB standard deviation |
| Tonal Tilt | -0.54 (negative is warmer, positive brighter) | -0.73 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+2.3 dB at 30 Hz) |
| Connection | Wired | True wireless |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic |
| Impedance | 32 ohms | - |
| Sensitivity | 102 dB | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| Built-in Microphone | Yes | Yes |
| Active Noise Cancelling | - | Yes |
| Battery Life | - | 11 hours (52 with case, Manufacturer specified) |
| Bluetooth Version | - | 5.4 |
| Bluetooth Codecs | - | SBC, AAC, aptX, aptX Lossless, LDAC |
| IP Rating | - | IPX5 |
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 Melody Wings Jupiter from aftersound, eliseaudio, sl0the, takeitslow7 and tonedeafmonk; the EarFun Air Pro 4 from atechreviews, dhrme, fernandagunsan, regancipher and soundignity, all via squig.link.
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