I thought the AAA battery power was a great idea ... one less thing to recharge. Unfortunately, that's the only good thing about this headset. There is no soft ear piece to fit in your ear or form a seal between the speaker and your ear. This is not a problem if you're somewhere quiet, but it is very difficult to hear when in the car even with the headset volume turned all the way up. Also, the ear hook is not very snug so the unit bounces on your ear when you move your head. I found myself having to push the headset toward my ear or cupping my hand over it ... kind of defeats the whole purpose of having a hands-free headset.