So ive had my Roseselsa Aurora ultras for almost an year now and heres my vague but hopefully helpful review of them:
-Non audio: I am pretty clumsy and abusive when it comes to audio products and the wires that came with these? Ill give them a 7/10. The lower part of the wire is made of a thick rope like material which is robust but the upper half is flimsy and mine got damaged within a month but then again with proper maintenance they could probably be kept mint if gou dont sit on them accidentally (which i did, A LOT). The box it comes with is sturdy and spacious so you can store your eartips in it too. The build of the IEM itself is also good with a metal faceplate and a plastic mould for the ears. Do note that you wont feel the bass in this iem if it isnt sitting deeply in your ears and so try nailing the ear tip size according to your own instead of just using the smallest or largest one.
Next,
Audio quality and signature:
It serves well for the price and has amazing bass and the planar driver works really well giving a lot of detail but also punchy bass which is really good . The mids and upper mids are pretty average sounding however instruments like drums are very crisp. Im not too well versed when it comes to describing audio signatures but i hope this gives you an idea of how it sounds .Soundstage and Directionality are not the best but theyre better than any TWS or headphones in this price range and if you can deal with wires, theyre well worth the price.
-Overall my two options were either the Bunny DSP or this and i dont regret this being my first iem purchase and my choice in IEMs. Id recommend this to any person who wants a lot of detail in their music along with good bass. The accessories it comes with are also good for the price. These work well with a lot of genres that have either a lot of bass or a lot of treble ( rock ).
Again if theres anything confusing about this review be sure to comment so i can clear it up. Hope you found it helpful!