Certainly nothing for sound fetishists - but good for my needs

I have read in other reviews about poor sound quality, but I find this really OK to good.
If no sound / music coming from the cell phone, then you can hear it hiss or crackle when the sound is but to, Techno / House, etc. I hear nothing more. Not sure if that is still the case in classical music with quiet passages.
For "high-end handset" may not be good enough, but perfectly adequate for normal listeners.
Otherwise, the device does what it should.
Phone quality is also sufficient. I hear my callers well and listen to me. Clear, unlike when I have the cell phone to the head, but no worse than headset / Mic.
Once paired, the phone coupled unless Blutooth is of course, always automatically when you turn on the device.
If you want more simply must spend more and be best to buy a car with Bluetooth and hands-free.
For about 50 man can not complain really.
Had it been only briefly in use, should be what new theoretical approach in the long run, I write again.