Like a couple of previous reviewers, I bought a Motorola H700 to replace my old HS850 bluetooth headset, which finally gave out after a few years of solid use. I was so pleased with the performance of the HS850 that I thought that its successor, the H700, would be even better. HOW WRONG I WAS! From day 1, this device has been problematic. The most annoying problem is that people complain of hearing an "echo" of their own voice when they're talking to me and I'm using the H700.  As soon as I close the headset and return to talking directly on my Motorola E815 phone, the problem disappears, and everything is crystal clear. Also, once you pair the H700 headset with your phone, it's supposed to answer a call automatically when your phone rings and you open the headset's boom microphone. But mine doesn't.  This has caused me to miss so many calls! After waiting forever to speak to one of Motorola's help techs, they advised me to change the settings on my phone. I did what they instructed, but I still cannot answer calls automatically by opening the headset. I'm planning on returning my H700 headset today and getting a more expensive bluetooth headset. The H700 may cost a few $ less, but it's not worth the trouble.