Disclaimer: I bought this product using my own money, i bought this from a online store. this review is only my subjective opinion regarding the product and is not influenced by anyone/anything.

Background: Im a beginner in this hobby, spend my time reading forums, watching reviews and reading audio related topics. (i did that for years cus im indecisive at buying gears and im broke lol)


Bass:
This is a V-shaped iem, the bass is prominent on this pair but not that muddy that overpowers the other frequency, some little mid bass bleed is there but also gives the male vocals a little more body.
the subbass is more prominent than the midbass that makes this pair good for genre that calls for it, if im gonna nitpick about the bass id like to reduce the subass a bit and have a lil bit more midbass, i noticed on some tracks specially bassline oriented ones is; the bass is prominent yes, but the bass guitar notes is not separated well due to the extended subbass, it doesnt bleed too much tho, but im still looking for some midbass details.


Mids: A little bit recessed, given that this is a V-shaped iem so mind the signature, sometimes it falls behind the bass and the treble, but thats on uncommon circumstances.
heres the good thing; the mid details on this iem is very very good, the instruments are very well separated and its clear, theres the track "bungantulog" - Zild, the pre chorus vocal harmonization is really really well separated and well layered on this pair, you can hear the many octaves of layered vocals, and the guitar strums on acoustic tracks you can hear the pick strumming the strings of the guitar even the track is a little bit busy, concidering the tuning, and price, its performing well technically speaking.


Treble: heres also the iem's selling point, though we hear differently some people day its not sibilant some people say it is, for me im somewhere in the middle, it extends yes, for me it extends well not being too much sibiliant although theres a slight hint of harshness, im a fairly high volume listener but for me not too much to make it unbearable.
and due to this extension the cymbals and crashes very sparly but as i said not overly sparkly it still retains the natural presentation.
the treble also has some details to it, but given its extended presentation it loses some details when the high frequencies are somehow busy.

Technicalities: This iem performs surprisingly well on this aspect, youll get revealing and detailed vocals and extended yet detailed treble. (the bass is a lil bit different tho, but its v-shaped ofc)

Imaging-wise: somewhat average, but for the price its really good. i use this for gaming, it does the job, and it's comfortable. (fps)

Separation: well well done not getting too chaotic jus a little bit, and the revealing nature of the mids makes the separation stand out.

Soundstage: decent, ive heard a much much worse and this is really far from that, it's a bit wide but not too much, its not too much narrow and all i can say is its decent.


Conclusion: CCA CRA, V-shaped, and is technically capable, youll get a improve V-shaped tuning, with a fantastic detail retrieval, for the price under $20, on this price bracket truly CRA stands out in the crowd.