I don't understand all the great reviews for this unit. I can't keep the charger plugged in properly - the slightest movement on any surface disengages the connection so that when I retrieve it, I can't tell if it's charged or not unless I press it in and set it down just right and wait for a blue light. It's as if the unit and the charger were not properly designed to work together.I also thought all bluetooth units came with a car charger - after all, the point is to be mobile, and you want to be able to charge it when it runs down on the road. I suppose for the price I should not have expected that I'd have to get one separately, but I've never bought one before, and all the ones I saw in stores looked like they included one.I never actually used the unit on a live phone call, so I can't comment on its quality, but having to fiddle with the charger connection constantly to be sure it didn't disengage is reason enough to return it.