I have the jabra 8010s and 620s. They both have good talk sound quality but the 620 is superior with sound quality. I use the 620s mostly at work with my computer and answer calls with it as well. 620s have about 8 hours of continuous music listening on the battery. As far as comparison to wired stereo sound, i give the 620s an 8 and the 8010s a 6. I use the 8010 mostly in the car or around the house in my pocket, it has caller id that displays up to 30 contacts which is nice.
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