It was only hinted at inside the manual, but never definitvely stated, so I called JABRA and asked. Yep, I was right:THE BATTERIES INSIDE BOTH OF THESE UNITS ARE NON-REPLACEABLE.JABRA doesn't even have the cajones to admit this directly in their manual. They must figure if Apple can get away with this BS on the iPod, they can, too.What does this mean to you? Somewhere between 300 - 600 recharges, YOU WILL HAVE TO THROW THE ENTIRE UNIT AWAY!!! At least with the iPod, you can pay Apple some ridiculous amount of money to replace the battery.But wait, the idiocy doesn't stop there: The earpiece is a tapered ear-gel: IT DOESN'T STAY IN YOUR EAR unless you hold it there with your hand, which defeats the whole concept of "hands-free".And, to top it off, the activation/de-activation sequence/ear-tones are confusing and goofy; half the time, the activation remained after I terminated a call, which quickly drained the adapter.WHAT A PIECE OF JUNK!