I had seen the ads for the Jawbone in Sky Mall magazine. (A magazine I used to trust) I bought it 32 days ago and after the first 3 weeks rarely even bothered to take it out of my briefcase. It was painful to wear and no matter how I attempted to adjust it it flopped around and I couldn't possible keep the earpiece against my cheek, like you are supposed to. When I placed any call I quickly found out that I couldn't be heard over the slightest breeze or even the air conditioner in my car! The buttons are extremely hard to use. Three or four times I received calls and when I pressed the button I got an ear full of nothing but loud static, and when I tried to turn off the unit so I could return the missed call the unit wouldn't shut off! I had to wait 2 or three minutes before I could even return the missed call! You can't get your money back, they will only replace it with another shoddy product. So go with the Plantronics. It's the one that I accidently broke, and I really liked it. Final advice DON'T BUY THIS PRODUCT!