Tenhz P4 Pro IEM

Update after 11 months of ownership: Not sure about the durability & QC claims as mine have been rock solid. In fact, they still look like they've just been taken out of the box. My pair needed 200 hours of burn-in before I began to feel that they "matured" . Right now, the bass is quick & extended but it's not the strongest. The treble has developed some air & is very good without being sibilant. The midrange, which was always the strong suite, remains so & the small issue I had with the upper midrange has dissipated. They are a very neutral iem. Because of their comfort, fit & ability to isolate, I'd call these my main everyday travel iem's. I have many others that I also use so no, it's not a matter of me getting used to their sound. They really have improved over time & to be honest, I'm not sure that they've finished improving. Dynamics are not the best & they don't like to be pushed to hard. Keep them within their comfort zone & they can be very good. To summarize: Very neutral with a monitor-like presentation. Best passive noise cancellation of any iem I own. Very efficient but not the best dynamically or volume-wise. Best suited for multimedia use IMHO.

I am extremely cautious of chifi multi driver IEMs. Too many have issues with BAs dropping out. Sure they are great performance for the money but its a waste if they only last 2 months.

Drop - are these going to physically fall apart in the first month or two like every other time you've offered them, or have improvements been made? I love the sound quality but hate the build quality.