I got the ROSESELSA Furina Endless Solo of Solitude.
Furina-themed earbuds
The ROSESELSA Furina Endless Solo of Solitude is a set of true wireless earbuds made in collaboration with Genshin Impact’s Furina.
The left and right housings are different colors, finished with the deep navy and gold of Furina’s outfit.
They use a planar titanium composite diaphragm and support LHDC 5.0, LDAC and LC3.
The bundle includes a silicone case decorated with a chibi Furina, along with a can badge and illustration cards.
Three ear tip sizes are supplied, so you can swap them out if the default pair doesn’t fit.
The silicone case is a snug fit with a grippy inner surface, and it simply slips over the charging case.
It would probably pop off on impact if you dropped it, so treat it as protection for storage; for carrying the case around, a drawstring pouch is the better option.
Fit and weight
The earbuds are rounded triangles that drop neatly into the bowl of the ear.
The surfaces have a glossy IML finish, and like Furina’s eyes, the left and right are different shades.
They’re light and shaped so you barely feel the weight, so there’s little strain on the ears even after keeping them in for a while.
The pair weighs 8.9 g.
The case with the earbuds inside weighs 42 g.
It’s compact as well, so it doesn’t get in the way when you carry it.
ROSESELSA quotes about seven hours of continuous playback over AAC, and 35 hours in total with the case.
The case charges over USB Type-C.
Sound: bass-leaning V-shape
The tuning is a classic V-shape, with the bass and treble pushed up.
Bass and kick have plenty of body, and EDM and rock hit with a punch you feel in your chest.
The mids sit a step back in exchange, and on some tracks the vocals get crowded by the low end.
The sound pressure is strong, so listening fatigue sets in easily — these aren’t earbuds for leaving on for hours at a time.
Only three EQ presets
The dedicated ROSELINK app runs on Android and iOS, and it lets you fine-tune how the earbuds behave.
The equalizer, though, offers only Pop, HiFi and Rock, with no custom setting for adjusting the curve yourself.
Noise cancelling and transparency are switched from the app, so outside of the sound tuning there’s little to trip you up.
On the Deep setting, things like air conditioning noise all but disappear, which makes it easy to focus on music or a game.
There’s also wind noise reduction and a transparency mode that makes ambient sound easier to hear.
Wear detection pauses and resumes playback automatically, which makes them easy to live with.
Tapping the left and right earbuds controls volume and track playback, and you can choose whether to enable touch controls at all.
Dual device connection
Codec support is broad — LHDC 5.0, LDAC, LC3, AAC and SBC.
Dual device connection is supported too, so moving back and forth between a PC and a phone doesn’t mean reconnecting each time.
Latency over LC3 is quoted at 30 ms, but LC3 has compatibility issues on the phone side, and I couldn’t get it to connect to my Snapdragon 8 Elite Gen 5 phones.
In practice you’ll be using either LDAC or LHDC.
Measuring latency with Bluetooth Codec Changer gave around 222 ms in game mode over LHDC, and when I actually used them while playing Genshin Impact, audio sync was never really an issue.
Voice prompts in English and Chinese
Furina’s character voice plays when you power the earbuds on and when they pair.
Only English and Chinese are included, though — there are no Japanese voice lines.
That’s no surprise given they aren’t sold in Japan, but it’s a shame all the same.
Conclusion
The ROSESELSA Furina Endless Solo of Solitude is a set of true wireless earbuds built around Furina’s design and character voice.
The sound is a V-shape with powerful bass, and the flip side of that is easy listening fatigue, plus an equalizer limited to three presets.
The cute Furina-themed case and extras in the box make them an easy recommendation for Furina fans.