The Rose Technics Earfree i3 ranks #928 out of 1291 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Rose Technics
Prices 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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#928 Rose Technics Earfree i3: 9.99 Wireless Discontinued Amazon eBay
Newer model: the Roseselsa EarFree i5, ranked higher, rated 3.6/5, released 2024. It drops AAC. See every Rose generation.
Pros: A broadly balanced tuning with a preference score of 65 against the Harman target. Succeeded by the Roseselsa EarFree i5.
Cons: An uneven response, 2.5 dB standard deviation from target. Discontinued.
Is the Rose Technics Earfree i3 right for you?
Buy it if
- you want sub-bass rumble that reaches down to 20 Hz.
- you want noise cancelling for commutes or flights.
- you are happy to use EQ: our preset lifts its Harman match by about 25 points.
Skip it if
- you want to buy it new: it is discontinued.
| Active Noise Cancelling | Yes (Adaptive hybrid ANC up to 45dB) |
|---|---|
| Back | Closed |
| Battery Life | 10 hours (earbuds), 50 hours (with charging case) |
| Bluetooth Codecs | LDAC, AAC, SBC |
| Bluetooth Version | 5.3 |
| Connection | Wireless |
| Deviation From Target | 2.47 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm DLC composite diaphragm dynamic driver |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40,000Hz |
| Harman Preference Score | 65 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 102 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.3 dB at 30 Hz) |
| Tonal Tilt | -0.75 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -3.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 90 out of 100, up from 65.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.6 dB | 0.70 |
| High shelf | 10,000 Hz | -0.9 dB | 0.70 |
| Peak | 32 Hz | +1.8 dB | 1.55 |
| Peak | 77 Hz | -0.8 dB | 3.15 |
| Peak | 150 Hz | -5.1 dB | 0.69 |
| Peak | 311 Hz | -1.1 dB | 2.64 |
| Peak | 906 Hz | +1.3 dB | 3.06 |
| Peak | 1,896 Hz | -1.1 dB | 2.00 |
| Peak | 3,744 Hz | +3.4 dB | 2.60 |
| Peak | 6,151 Hz | +2.7 dB | 6.00 |
Neutral target
Set a preamp of -3.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 91 out of 100, up from 29.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.1 dB | 0.70 |
| High shelf | 10,000 Hz | -0.9 dB | 0.70 |
| Peak | 32 Hz | +1.4 dB | 1.97 |
| Peak | 76 Hz | -0.9 dB | 2.80 |
| Peak | 149 Hz | -5.1 dB | 0.63 |
| Peak | 314 Hz | -0.8 dB | 3.51 |
| Peak | 906 Hz | +1.4 dB | 2.79 |
| Peak | 1,896 Hz | -1.1 dB | 1.99 |
| Peak | 3,746 Hz | +3.4 dB | 2.56 |
| Peak | 6,151 Hz | +2.7 dB | 6.00 |
Studio flat target
Set a preamp of -4.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 90 out of 100, up from 10.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -12.0 dB | 0.70 |
| High shelf | 10,000 Hz | +1.7 dB | 0.70 |
| Peak | 164 Hz | -7.0 dB | 0.69 |
| Peak | 912 Hz | +1.3 dB | 2.42 |
| Peak | 3,238 Hz | +4.4 dB | 2.25 |
| Peak | 5,032 Hz | -1.4 dB | 6.00 |
| Peak | 6,379 Hz | +1.8 dB | 6.00 |
Warm target
Set a preamp of -1.7 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 90 out of 100, up from 74.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.4 dB | 0.70 |
| High shelf | 10,000 Hz | -3.9 dB | 0.70 |
| Peak | 32 Hz | +1.8 dB | 1.59 |
| Peak | 150 Hz | -4.9 dB | 0.71 |
| Peak | 2,152 Hz | -1.7 dB | 2.55 |
| Peak | 3,606 Hz | +1.9 dB | 6.00 |
| Peak | 7,983 Hz | -3.4 dB | 6.00 |
Bass target
Set a preamp of -3.8 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 91 out of 100, up from 71.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.2 dB | 0.70 |
| High shelf | 10,000 Hz | -0.9 dB | 0.70 |
| Peak | 30 Hz | +1.9 dB | 1.48 |
| Peak | 81 Hz | -1.0 dB | 2.58 |
| Peak | 160 Hz | -5.1 dB | 0.71 |
| Peak | 321 Hz | -0.9 dB | 3.45 |
| Peak | 906 Hz | +1.3 dB | 2.92 |
| Peak | 1,896 Hz | -1.1 dB | 2.00 |
| Peak | 3,744 Hz | +3.4 dB | 2.59 |
| Peak | 6,151 Hz | +2.7 dB | 6.00 |
Bright target
Set a preamp of -5.3 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 88 out of 100, up from 18.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.2 dB | 0.70 |
| High shelf | 10,000 Hz | +1.0 dB | 0.70 |
| Peak | 32 Hz | +1.5 dB | 1.89 |
| Peak | 76 Hz | -0.9 dB | 2.78 |
| Peak | 150 Hz | -5.1 dB | 0.62 |
| Peak | 906 Hz | +1.3 dB | 2.31 |
| Peak | 1,896 Hz | -1.3 dB | 2.82 |
| Peak | 3,583 Hz | +2.8 dB | 6.00 |
| Peak | 5,345 Hz | +4.4 dB | 0.99 |
| Peak | 6,869 Hz | -1.7 dB | 5.82 |
V-shaped target
Set a preamp of -5.8 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 86 out of 100, up from 64.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.8 dB | 0.70 |
| High shelf | 10,000 Hz | +1.6 dB | 0.70 |
| Peak | 30 Hz | +1.9 dB | 1.42 |
| Peak | 77 Hz | -0.9 dB | 2.93 |
| Peak | 141 Hz | -3.9 dB | 0.74 |
| Peak | 297 Hz | -0.9 dB | 3.18 |
| Peak | 1,749 Hz | -1.3 dB | 2.88 |
| Peak | 3,563 Hz | +3.0 dB | 5.89 |
| Peak | 5,345 Hz | +4.7 dB | 0.91 |
| Peak | 6,934 Hz | -2.3 dB | 5.16 |
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Frequency Response
How the Rose Technics Earfree i3 measures across the audible range, against the Harman in-ear target that most listeners prefer in blind tests. Where the line sits above the target that range sounds louder (more bass, brighter treble), below it quieter. The curve is the median of 3 independent measurements, so one odd sample or rig cannot skew it, and both lines are shifted so their 500 Hz to 2 kHz average sits at 0 dB.
Measurement data: median of 3 measurements from the squig.link databases of ankramutt, soundignity and suporsalad. Thanks to each of them for publishing their work.