What others have said is true, it loses its connection unless you are standing still.There are other flaws: there is no warning when the battery will run out. Some may consider it an advantage that it has its own battery instead of drawing power from the iPod, but you know how much charge is left in the iPod. A second charger would be unnecessary if it drew power from the iPod.It often has trouble making a connection to the headset.I strongly recommend against it.