The sound quality is good WHEN it works. Although easy to pair with Blue Tooth to the iPhone once I did it and tried it again at the gym I can't get the music to play and of course you probably already know the controls on the Sony Headset don't control the iPod/iphone? I thought it was really cool at first but after trying to get it to work at the gym for three days running it goes back. It is also worth mentioning that you can't use regular rechargeable batteries. It has a built in Sony battery that you have to use its own specific charger for. Oh goodie, something else to recharge and keep up with. Not worth the headaches.