I've just been thrown into the pool of the bluetooth era.I read up on the wireless headsets, and the Motorola HS820 and HS850 seemed to be getting decent reviews, so I got a bundle including an HS820.This is the 1st bluetooth item for me. Linking to the phone took less than 5 minutes. Considering how poorly speakerphones have worked for me, and some problems that wireless land-line phones have given me, I'm impressed how bluetooth has worked so far.No real noisy situations for me yet, but it has worked as expected every time, with no crackles (like my Panasonic land-line wireless phones) or duplex issues. The volume is less than if I held ther phone to my ear (I haven't even tweaked the volume yet). Those Motorola sound engineers seem to know what they're doing!I was being grumpy about the fact that it's made for right ears (I hold a phone to my left), and my thickheadedness finally lifted when I "Read The Friendly Manual" and saw that you could flip the device and swap the volume buttons. It finally occurred to me that you could snap off the clip and turn it over.Better than average, but not fantastic for all-the-time usage, it will provide great convenience if you need both hands.I'll round it up to 4 stars. I don't think I'll ever get used to a plastic lump on my ear, but at least it works well!My next trick is to try to get a bluetooth adapter for a PC and use it for Skype, and other headphone uses.