[bigdinog]

Heres a thought from an every day joe. I do not know about models, nor specs, nor do i care to investigate. I did it the old way. I tried about 5 different ones. Old, tried, and true: You get what you pay for. Jawbone worked the best. Most people could not tell I was on a bluetooth when i spoke to them. Does that mean noise cancelation? I dont know. When people call me, almost instantly I can tell they are on a bluetooth. Can you say annoying?! Jawbone did the job for me. Do not know, name or model, i threw the packaging away.