I have tried several blue tooth ear pieces with no luck whatsoever. They are totally unreliable and the sound is awful. Everyone told me I also sounded like I was under water so I decided to try this blue tooth and I have to say that I am very impressed with this one. People can actually hear and understand me. The sound is clear. Good battery life. It certainly makes me feel better being able to drive and talk at the same time handsfree. Just remember, like all blue tooth, the technology still leaves some to be desired and you will find some quirks, times you will be cut off, but with everything that I have tried this is still the best of the best