Short answer: a tie on sound quality. Both are rated 3.8/5 (#597 and #615 of 1291 in-ear headphones) at nearly the same price ($152.91 vs $149), so choose on features and fit.
The case for the EarAcoustic OSHUN-LTD: A single dynamic IEM with an 8.3mm dual magnet, dual cavity driver. The tradeoff: Its score rests on three measurements.
The case for the iBasso Jr. Cookie Ti: A broadly balanced tuning with a preference score of 71 against the Harman target. Watch for: Treble about 4 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the EarAcoustic OSHUN-LTD or the iBasso Jr. Cookie Ti 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.
A single dynamic IEM with an 8.3mm dual magnet, dual cavity driver.
Linsoul $152.91 eBay
A broadly balanced tuning with a preference score of 71 against the Harman target.
Audiophonics $149 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
| EarAcoustic OSHUN-LTD | iBasso Jr. Cookie Ti | |
|---|---|---|
| Price | $152.91 | $149 |
| Ranked | #597 of 1291 in In-Ear Headphones | #615 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 8.3mm dynamic | 1 x 10mm dynamic |
| Impedance | 26 ohms | - |
| Sensitivity | 110 dB | - |
| Harman Preference Score | 71 (median of 3 squig.link measurements, calibrated to AutoEQ) | 71 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.10 dB standard deviation | 2.16 dB standard deviation |
| Tonal Tilt | -0.44 (negative is warmer, positive brighter) | -0.43 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.5 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 EarAcoustic OSHUN-LTD from audioamigo, joycesreview and theaudiostore; the iBasso Jr. Cookie Ti from aden, elrics and tonedeafmonk, all via squig.link.
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