I bought them for use with an electric guitar and the NUX Mighty Plug amplifier.
Their sound is a bit flat, but overall they perform correctly and I can clearly perceive even small changes in the sound parameters. They handle high volume well, but when I push it too far, the bass noticeably distorts.
Before buying these headphones, I used a pair of JBL in-ear buds that I had from before, which are much superior in terms of music, and even in guitar they ultimately have slightly better sound than the Pro 10, more clear and rich.
When I tried them to listen to music from my phone - even though I didn't buy them for this purpose - they worked fine, with satisfactory bass but noticeably limited volume. However, they will never replace the JBL in anything other than guitar.
The main difference is that, as over-ear headphones, they are much more comfortable for extended use.
The build quality is indicative of the price I paid (€38), the plastic joints don't seem very durable, but it's positive that they have a metal connector bridge between the two ear cups, so I hope they will withstand constant plugging and unplugging.
Although it hasn't gotten hot yet, I already feel some warmth in my ears after half an hour of continuous use. Not sweat though. They are very comfortable on my head, absolutely comfortable. The isolation from external sounds is satisfactory, but not absolute.
At this point, I want to clarify that I am not a professional in the field of music or sound, but just a hobbyist guitar player. I have minimal experience with other headphones, and these are the first studio headphones I have purchased. Also, because I use the absolute minimum equipment (mobile, NUX, guitar), I didn't look for anything with a resistance higher than 32 Ω (so it needs extra amplification).
I chose them because, on the one hand, I didn't want to spend a lot of money on a toy that I only play at home, and on the other hand, I really appreciated the fact that they were the only ones in their price range with a detachable cable.
They are versatile for various uses, as they have 3.5 and 6.35 mm jacks and both work for input, so with the cable (3.5 to 6.35), you can connect them anywhere - directly to a regular guitar amplifier, to sound systems, PCs, phones, anything.
Finally, I liked the ability to connect them in series with a second pair of headphones.
The packaging also includes another 3.5 to 3.5 cable with a hands-free for mobile, which I haven't tried yet because I'm not interested in using these headphones for the phone.
Overall, a good purchase, with drawbacks that I generally knew beforehand from reading several reviews, and it seems like it will quickly justify the small amount of money it cost.