I have had my Earfun Air Pro SV earbuds for many years now and I truly cannot describe how great these headphones are.
As a bit of a disclaimer, I do not really know much about sound quality and I really just use the headphones for enjoyment and listening to music so I cannot say that these are of the highest sound quality but I can say that they work well for me as an average listener.
I would like to begin by stating that the durability of these earbuds has been absolutely phenomenal. I have had the Earfun Air Pro SV for at least 3 years, using them almost every day. Just to testify the robustness of these earbuds, I can say that I am a very clumsy person, by which I mean that I am constantly dropping these headphones and not putting them in my ear properly, causing them to fall out. I have literally dropped one of the earbuds in the sea and it still works perfectly and sounds the same. Apart from some slight wear and tear on the outer case of the earbuds, they are in absolute perfect shape.
Another bonus of these earbuds is the outstanding battery life. As previously stated, I use the Earfun Air Pro SV almost every day, yet I only seem to find myself needing to charge them around twice a month. And no, I am not exaggerating. To give a little more context, I would use them for approximately 2 hours a day, which I know may be less than the average user, but with that, I charge them around once or twice a month, which I think is pretty good. Another example for the battery life is that in the summer, I tend to go on around a month long trip to visit family, with a six hour journey there and another six hours back. I use the headphones the whole way there and back, not to mention light usage during the trip while in car journeys or when I am alone (so not using every day but also I am still using it a fair bit during the month away). They usually don't need to be charged until I am back home, sometimes lasting even longer. I know that my time periods are a little vague but the fact is, I do not know exactly how often I need to charge them because it is so rare that I seem to only be doing it right before I know that I'll need them for a long time (a trip away for example).
Those are the main two factors which I think are the most exceptional, and I think those are kind of the main two factors to take into consideration for this product, for an average user. The only other things I can think of to note, are that the case is very small and compact so it fits easily practically everywhere. They can be used quite a distance away from the connecting device (as long as there isn't a wall inbetween). They are also not as crazily expensive as some other companies headphones can be.
Another thing to note is the noise cancelling mode on these earbuds works extremely well. When I use them while travelling, they are incredible at blocking out almost all of the engine noise from cars or plains and whilst human voices can be heard, it is very muted so you have to be paying attention to hear what is being said and therefore is easy to tune out.They are also not as crazily expensive as some other companies headphones can be. One thing about me is I am severly emetophobic (fear of vomit). Unluckily for me, my siblings get severly travel sick. I always use these headphones to block out all sound around me when I am with them and just focus on my music so I can't really hear anything going on near me (just in case) and it has always worked for me.
Last thing to note, I am aware that the Earfun Air Pro SV are a very outdated model and I don't even know if they are being sold anymore, but I just wanted to share this as a testiment to the amazing quality and longevity of this brand of headphones. I hope that this might help someone or at least provide some information about the standard of this company. Thank you.

