Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Car Add-On

I have several bluetooth ear attachments. I hate them. They're uncomfortable and I always forget to put them on or what is worst if I get down of the car wearing them I forget to bring them back. That's why I have several.Saying all of the before. This car speaker is THE BEST! You turn it on when you get on your car and talk freely on it. Nobody even knows you're on speaker and not actually on the phone. That says a lot about sound quality. Then the best part.... as you get down from the car and looses contact with the phone, it simply turns itself off automatically.I'm so very happy to have bought this!