I recently purchased the Roseselsa Ceramics Ultra and have been using them for a few days now. This post covers my personal experience with them.
🏗️ Build Quality and Feel
The case is compact, well-built, and has a very satisfying click sound when closing. It features a faux ceramic tile/marble effect on the lid. Personally, I'm not a huge fan of the aesthetic, but I don't necessarily hate it either
🎧 Comfort
This might be the most comfortable pair of earbuds I have worn in a long time. I can actually sleep with them in, and they don't hurt my ears at all. While it wasn't mentioned on the ConceptKart product page, their official website states that they ship with their NC200 eartips, which makes for a great out-of-the-box experience. They also include two additional sets of generic (non-NC200) eartips.
🔇 ANC & Microphone
The active noise cancellation is outstanding in every regard for this price bracket; I love how effectively it blocks out ambient noise. However, what really surprised me wasn't just the ANC, but how good the transparency mode is. It is easily one of the best transparency modes I have used on a pair of earbuds. As for the microphone, it is crisp and loud. I have been on calls for hours using ANC and have sent plenty of WhatsApp voice notes, and it has handled all of it incredibly well.
🎵 Sound Quality & Battery Life
These feature a 10mm dynamic driver, and impressively, they support both LDAC and LHDC—which is virtually unheard of in this budget range. The bass is thumpy, yet it remains very, very clean. As for the battery life, here is what I got during my testing:
10 hours using AAC 7 hours using LDAC / LHDC
📱 App Experience
The companion app is very basic and bare-bones. It doesn't offer any EQ customization. You can connect to two devices simultaneously (multipoint), but doing so forces you to drop down to the AAC codec. Overall, the app experience leaves a lot to be desired, especially for a brand marketing itself to audio enthusiasts. This is my main complaint