As usual, still have not found a Bluetooth that at least has me sounding good on the other line. It did work great while I sat parked somewhere but while driving, forget about it. At this time, I am using a Ford Transit and it doesn't work well but maybe on a nice quite car it may work fine for you. I also had problems with the Bluetooth connecting automatically because every time I got back in the van, I had to reconnect my iPhone 6. Longevity of the battery was never tested because I made 2 phone calls with it and I sounded miserable where people on the other end couldn't understand me due to road noise.