Roseselsa Ceramics Ultra

Disclaimer

The Ceramics Ultra has been sent by Roseselsa, I really appreciate their support to bring you content about their products.

A big shout out to Yessy from Roseselsa for arranging the shipment of this unit for my honest review.

My video review:

You can buy them directly their website:

Ceramics Ultra - Normal price $45-50 USD

Pros

• Punchy and dynamic bass

• Excellent battery life

• Excelent sub bass extension

• Comfortable and lightweight

• Great value for its price

Cons

• Slightly sibilance on some tracks

• iOS 27 app connection bug (easily fixable)

Accessories

TWS Ceramics Ultra

USB A to USB C charging cable

4 pair of eartips

Technical specifications:

Model name: Ceramics Ultra

Transducer Type: 10mm dynamic diaphragm driver

Frequency response: 20 - 20Khz

Connection distance: 10m

Connectivity: Bluetooth 6.0

Battery Life: 10H Normal mode AAC - 8H Normal mode LDAC

Sound - How I perceive it?

To my ears, their sound signature will depend on the presets chosen in the app. One thing I want to mention before describing these presets is that, out of the Bluetooth earbuds I own, these show the least drop in audio quality when selecting any of the ANC modes; maximum quality is achieved in normal mode at the cost of losing quite a bit of bass.

In most earbuds, you notice a drop in bitrate, a very noticeable boost in bass, and a reduction in mid frequencies (especially in ambient mode) to make outside voices clearer.

On the Ceramics Ultra, audio quality remains quite faithful; bass increases very little, barely at all (maybe 1dB at most to my ears), while midrange and treble remain intact, which for me is a major plus.

Another thing worth noting is that when selecting normal mode, unlike other earbuds where microphones turn off completely, the Ceramics Ultra maintain something like a lighter ambient mode.

I think this is why I don't perceive a quality drop when using normal mode, because there's always some sound passing through the microphones. Even so, it maintains consistent sound quality, which puts them above others I've tested.

Now moving on to the 4 EQ presets:

Classic

This preset significantly boosts bass and sub-bass, with slightly recessed midrange and elevated treble. Recommended if you want punchy bass "quickly" without manual tuning, just keep in mind that the highs are at the same volume level.

Pop

Here we have a sound more focused on vocals. Treble is significantly reduced compared to Classic, offering a more balanced profile with less sub-bass presence while keeping the punch. Midrange is more forward and treble is controlled, less sibilant, and less detailed than the first preset. The name feels appropriate for pop music; you might feel it lacks a bit of bass, but overall it's a well-suited preset.

Hi-Fi

This preset is the most "neutral" in my opinion, though highs might be a bit elevated for some people. Still, it is one of the most balanced choices if you want a calmer listening experience while keeping high-frequency detail.

Rock

This is my least favorite preset and the one I used the least, as it makes the sound quite dark. It doesn't add bass like the first preset. It cuts high and upper-mid frequencies significantly, making the sound congested and lacking detail. I wouldn't recommend this preset for "modern" pop where there is a tendency for the high frequencies to be more prominent.

Manual EQ

The manual EQ has 10 bands, which are well-distributed with well-chosen center frequencies. Switching to this preset flattens and balances everything, especially if coming from the first preset. As you adjust each band, you'll notice the changes settle in progressively.

This is my personal favorite setup. I aimed for a sound similar to the Classic preset while retaining bass and controlling sibilance better; to do so:

I boosted sub-bass by +3 dB

Bass by +2 dB.

I left the midrange at 0, occasionally boosting 1 or 2 kHz by +1 dB when I want better vocal clarity.

I cut 5 kHz by -1 dB to attenuate sibilance that might appear in some tracks.

+1 dB at 16 kHz to give the treble a bit more sense of air.

Tested on:

Galaxy s10e

iPhone 12 & 16

Apple TV 4K 3rd Gen

Macbook Air M1

Design

As for the design, in my case I have the matte-like gray color with the brand name on this part. It has small speckles that give it a slight texture, preventing it from looking or feeling too bland.

They are quite lightweight and feel well-built. The fit is comfortable; at first, I felt like they might fall out while walking, but using eartips that provide a good seal, they didn't fall out once, and you don't have to adjust them as often as you might with other similar designs.

The case is made of the same material and color as the earbuds, and features an LED indicator for the battery level. It also lets you see if the charging pins make contact when placing the earbuds inside, avoiding any surprises where only one of the two ends up charging.

APP:

Even though the companion app doesn't have many reviews on the Play Store or App Store, it works quite well—better than Soundpeats' app, which I've used most over recent months.

I tested it on Android, iOS, and macOS. The same settings and customization options are available across all platforms.

It features a design similar to Samsung's app, particularly in the ANC mode icons.

You get full customization for touch controls, EQ, low latency mode, dual-device multipoint connection, audio codecs, and experimental features.

Latency without enabling game mode is quite decent; video playback shows no annoying delay, though there is a tiny delay when pausing and resuming playback as it takes a second to resync audio with video.

For gaming, I definitely recommend turning on game mode to get the best response time possible.

All features work as intended. The only issue I encountered during testing was that when switching to the LDAC codec, they reboot and reconnect automatically. Upon reconnecting, audio dropped in one earbud; putting them back in the charging case and taking them out fixed it completely.

I experienced no playback dropouts, apart from the usual hiccup on Apple Music on Android when switching stream quality on weak Wi-Fi signals. Aside from that, the connection remained very stable.

Ceramics Ultra ($50) VS Soundpeats H3 ($100-140)

Comparing them with the Soundpeats H3, which are the earbuds I've enjoyed the most in terms of sound quality.

The price of the H3 is usually more than double that of the Ceramics Ultra.

They share a somewhat similar design, though I find the Ceramics Ultra slightly more comfortable. I don't have to readjust them as often as the H3.

Transparency mode feels clearer and more natural on the H3. I also have the Galaxy Buds3 Pro, and those are significantly better than both the Ceramics and the H3.

ANC feels slightly better on the Ceramics Ultra, though neither model handles high-pitched sounds particularly well.

In terms of sound quality, I prefer the sub-bass extension on the Ceramics. Punch is very similar on both, but I prefer the mid-frequencies on the H3—here the dual balanced armature + dynamic driver setup shines. The H3 also feels smoother around sibilant high frequencies.

Battery life is where the Ceramics Ultra completely outperform the H3 when using any ANC mode, offering up to double the battery duration in this mode compared to the H3.

2 additional hours in normal mode with the AAC codec.

4 additional hours using AAC codec with ANC active.

1.5 additional hours using the LDAC codec.

2.5 additional hours with LDAC and ANC active.

Conclusion:

I think the H3s still sound a little better but ,considering the price, I think Roseselsa's ceramics is a more sensible purchase.

ANC

ANC performance is quite decent for the price; while it doesn't cut high frequencies as much, it does enough.

Ambient mode lacks clarity, especially with voices. If you are listening to music and someone speaks to you, hearing them clearly in this mode will be tricky. Nevertheless, it serves well enough to keep you aware of external sounds.

I didn't use the wind noise reduction mode much; ANC mode felt sufficient. Some reviews on AliExpress mentioned glitches with wind mode like whistling noises or amplified wind sound, but I didn't encounter any of those issues.

Conclusion

Fully recommended, easily among the best options you will find at this price point. Noise cancellation isn't the absolute top tier, but it works; transparency mode isn't the clearest, but it's functional.

Highlights include sound quality, battery life, and price. Thanks to Roseselsa for sending over this sample for my honest review.