This is the second Motorola HS850 that I purchased. My girlfriend has a newer motorola model without a boom, that I just couldn't hear her through whenever she used it in her car. Since I was so happy with my own HS850 (which I've owned for 2 years without any problems), I decided to buy her one to see if that would help. She's been using it for the past couple of weeks and we can actually have conversations with our headsets on! Go figure! If you want an inexpensive bluetooth headset that works well, then this is the one to get.