Below are excerpts from the review:
Tonality wise, The TC35 Pro Eye 2 does add a slight tinge of coloration to the signature, i would say it is sprinkled with a slight hint of warmth for the signature. I have tested several dongles with CS41313 but they don’t sound the same at all. That pretty much explains implementation and tuning is the key, considering the TC35 Pro Eye 2 is using a different amp chip. Don’t be fooled by the low power figure, for most of the IEMs, it is actually sufficient, Letshuoer’s EJ07M, the brand’s Janus 3, both of it sounded good off the TC35 Pro Eye 2, and i don’t even need to push the volume to 50% mark, background noise is well handled as i don’t hear any hisses or noise. However, i do notice that there’s some static sound every time the track changes, be it forward or backward, even pausing and resuming the track produces the static noise as well. Hopefully this can be addressed with a firmware update.
Source: Head-Fi