I have to say I was not expecting them to have this great sound and back bass but yes they do the sound is great and blocks out noise very well even when i am out at the shooting range or running through rifle courses they had held up very well under my normal headset.
They are comfortable to a point but they do occasionally fall out do to the lack of hold on the design of the earbuds but that was easy to fix with a more sturdy earbud foam piece to go on it instead of the normal earpiece,
The battery says it lasts for up to 8 hours of music play time how ever I had actually got more than 10.5 hours of straight music play and the charge time is faster than it says as well full charge in 1 hour.
Now I do have to say that the case it comes with is a much better case than most earbud chargers since in which it can also be used as an external battery charger if you need to charge another device or phone like I had to do twice and it does work pretty well as an external battery.
The seller is great when ever I had a question about these they answered me within reasonable time 5-9 hours later after I had sent them an email 📧. So in the end I will have to say these are a good earbuds set and work beautifully, with no hassle set up just take out of case and they pair up with your phone instantly just hit ok when it says to on your screen to link them permanently. I will also be saying I will recommend these to others since they are easy to use and very easy to take care of.