A:AnswerIt would be a pain in the neck to configure. Oh that it had BT. I used a smaller battery powered external speaker with a mini-1/8/3.5 mm adapter plugged into the headphone jack of the player. It worked well!
A:AnswerIt comes with a wall charger for each unit and and a car charger that powers both. So it comes set up to play either at home or in car. One unit is marked A and one is marked B.