The overall quality to cost is worthy of a 5-star review IMHO. But if really wanna make your house a small gym you need this thing I suggest you must buy it. Pairing is simple and quick and I was listening to music within 2 minutes of opening the package. Cancelación de ruido activa inteligente. SO, I will be disposing of this Sennheiser headset and moving onto something else. The grandkids and I love it. Sometimes the seal breaks, but I rotate them back into the right position. Intermittent between buds and when listening to music and audio books and dropped when on calls. But then I discovered Alegria, and Im able to walk 8 to 10 thousand steps with no problem. ??????Thank you so much for making a container into something Im proud to display.