Bought these as I like listening to music and the convenience of phone connection. I've found the sound quality to be very good given they are PPE and not domestic quality. The blue tooth range is surprisingly good, up to 100m on an open site and pretty good through multiple walls at closer range so you don't need to carry your phone about. The external sound reduction is significant but you do have to be aware of other people on site - you won't hear them talking to you. Only one niggle, for what its worth, the buttons are a bit small if you're wearing gloves but that wouldn't stop me buying them again.