I picked theses up 2 days a go, and so far so good. I was able to pair the HT820 with my cell phone VX8600 and with my PDA Axim51V with no issues. while listening to music I was surprised they sounded that good and to listen to the person your calling in stereo is cool, I called a buddy while at the lake yesterday and asked him how I sounded while using the headphones he stated they sounded clear even while there was a light breeze blowing.The ht820 do work better if you have your cell phone or pda on your right side. they dont do streaming audio like from verizon vcast