I have never had a bluetooth with a vibrate function.You can see where this is going.It is BTW comfortable, has great clarity and so on.But this evening in the kitchen I had forgotten I still had the headset on... in my ear I heard ding ding ding BUZZZZZZZZZZZ BUZZZZZZZZZZZZZZZZZand kids it was loud enough to wake the dead. When I realized there wasn't the mother of all bumble bees in my ear, and changed my shorts, I decided to share :-)I'm glad I bought it. Good unit