This seems like a great buy if you're needing a cheaper set of bluetooth earphones.
I've very happily used a set of these since September last year, but have just ordered a second pair as my dog had a bit of a nibble on the right ear a few months ago.
The big selling point for me that has me buying another set is the 10 hour battery life outside the case. I can have these in ear an entire 8.5 hour work day without needing to pop them back in the case, and then the case will get you another 10 hours before recharging.
As for audio quality, I personally think they sound great, but I'm by far an audiophile. I'm sure you could easily find a set with better audio quality, but I imagine these would be pretty high up there for under $60.
How is noise function of this ?