I bought this earpiece for its capacity to connect to two bluetooth cell phones, incidentally I also liked this company's CallPod Charger.  When I got the Dragon, I found it extremely uncomfortable to wear.  The rubber earpiece that is supposed to go inside your ear was too stiff for me and after trying to wear this earpiece for 30 min or so I had to take it off.  I contacted their customer service department explaining my complaint and they said they had a fix.  I received in the mail a new ear clip which is the part that goes around the back of the ear.  Since my problem was with the rubber piece that goes inside your ear, this fix did not help me.  I also expected much better sound from this unit, but I got noticeable interference, even when wearing my cell phone on my hip so that there was only 2 feet or so between the Dragon and my cell phone.  I liked the idea of the upgradeable firmware.  I did perform this upgrade, but didn't notice any improvements.  The upgrade process was kinda picky and I had to try many times to get the software to recognize the Dragon.