The Roseselsa Ceramics Ultra ranks #125 out of 1448 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Roseselsa
Prices on this page were last checked October 20, 2026 at 10:35 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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#125 Roseselsa Ceramics Ultra: $49.99 TWS Amazon $49.99 eBay
Pros: Budget ANC earbuds at about $50 with LDAC, LHDC and Bluetooth 6.0, measured by two reviewers with a preference score of 80. Sub bass reaches fully to 20 Hz and the response from bass to 12 kHz stays within about 1 dB of target. Battery life is 11 hours, 40 with the case.
Cons: An 8.6 dB peak near 8.2 kHz can make sibilants and cymbals sharp. There is no AAC, so iPhones fall back to SBC.
Is the Roseselsa Ceramics Ultra right for you?
Buy it if
- you want the tuning most listeners prefer in blind tests out of the box (Harman score 80).
- you want sub-bass rumble that reaches down to 20 Hz.
- you want noise cancelling for commutes or flights.
Skip it if
- you want the best value: the higher-rated QCY HT05 MeloBuds ANC costs about $16 less.
| Active Noise Cancelling | Yes |
|---|---|
| Back | Closed |
| Battery Life | 11 hours (40 with case) |
| Bluetooth Codecs | SBC, LDAC, LHDC |
| Bluetooth Version | 6.0 |
| Built-in Microphone | Yes (4 mics) |
| Connection | True wireless |
| Deviation From Target | 1.61 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x dynamic |
| Form Factor | In-ear |
| Harman Preference Score | 80 (average of 2 squig.link measurements scored separately, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.6 dB at 30 Hz) |
| Tonal Tilt | -0.07 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -0.1 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 84 out of 100, up from 80.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.1 dB | 0.70 |
| High shelf | 10,000 Hz | -4.9 dB | 0.70 |
| Peak | 329 Hz | -2.3 dB | 1.02 |
| Peak | 7,665 Hz | -3.3 dB | 6.00 |
Neutral target
Set a preamp of -0.1 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 89 out of 100, up from 47.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -9.7 dB | 0.70 |
| High shelf | 10,000 Hz | -4.9 dB | 0.70 |
| Peak | 329 Hz | -2.2 dB | 0.94 |
| Peak | 7,665 Hz | -3.3 dB | 6.00 |
Studio flat target
Set a preamp of -2.1 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 88 out of 100, up from 28.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.4 dB | 0.70 |
| High shelf | 10,000 Hz | +0.7 dB | 0.70 |
| Peak | 38 Hz | -0.8 dB | 1.55 |
| Peak | 131 Hz | -1.7 dB | 1.78 |
| Peak | 309 Hz | -3.5 dB | 0.66 |
| Peak | 1,037 Hz | +1.4 dB | 1.45 |
| Peak | 2,662 Hz | +2.2 dB | 2.08 |
| Peak | 4,523 Hz | -2.6 dB | 4.81 |
| Peak | 7,922 Hz | -3.4 dB | 1.95 |
Warm target
Set a preamp of -1.4 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 89 out of 100, up from 79.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -0.9 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 23 Hz | -1.2 dB | 3.06 |
| Peak | 319 Hz | -2.1 dB | 1.23 |
| Peak | 1,012 Hz | +1.7 dB | 3.02 |
| Peak | 5,924 Hz | +1.9 dB | 6.00 |
| Peak | 8,000 Hz | -3.4 dB | 0.43 |
Bass target
Set a preamp of -2.7 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 89 out of 100, up from 73.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.6 dB | 0.70 |
| High shelf | 10,000 Hz | -4.9 dB | 0.70 |
| Peak | 329 Hz | -2.4 dB | 1.08 |
| Peak | 7,664 Hz | -3.4 dB | 6.00 |
Bright 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 90 out of 100, up from 38.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -9.7 dB | 0.70 |
| High shelf | 10,000 Hz | -1.9 dB | 0.70 |
| Peak | 23 Hz | -1.7 dB | 1.77 |
| Peak | 329 Hz | -2.3 dB | 0.93 |
| Peak | 1,019 Hz | +1.3 dB | 2.72 |
| Peak | 5,772 Hz | +3.9 dB | 3.04 |
V-shaped target
Set a preamp of -4.1 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 89 out of 100, up from 75.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.3 dB | 0.70 |
| High shelf | 10,000 Hz | -0.8 dB | 0.70 |
| Peak | 23 Hz | -1.1 dB | 2.62 |
| Peak | 66 Hz | +1.1 dB | 1.59 |
| Peak | 395 Hz | -1.5 dB | 1.84 |
| Peak | 3,196 Hz | +1.2 dB | 4.43 |
| Peak | 5,655 Hz | +4.0 dB | 1.94 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Roseselsa Ceramics Ultra 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 average of 2 independent measurements, and both lines are shifted so their 500 Hz to 2 kHz average sits at 0 dB.
Measurement data: the average of 2 independent measurements from the squig.link databases of csi-zone and regancipher. Thanks to each of them for publishing their work.