I love this headset. I can listen to music throughout the day from MP3's loaded on my AT&T; 8525 phone. It is very nice to be able to control the music from the headset while my phone is in my pocket or wherever I happen to put it down. Occassionally the signal drops causing the music to stop.My only complaint, they are so large that you look goofy wearing them. Smaller ear pieces would definitely be a welcome change.Quality of the music is great. Sound quality when on the phone is perfect. I have not had any complaints from others when talking on the phone.