Quote:
Originally Posted by Robb
It's house current or Car/Boat plug-in I assume.
No batteries.
What I dont understand is if I used a 4 pin cord like the Sony, how does it know which voltage to use ? (12v or 120v)

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OK, while there are 4 holes on the end of your cord, there are only 2 that carry the 120v. Notice the plug has a orientation tab, you can only plug it in ONE WAY. That is to make sure the 120v goes to the correct pins. The 12v cord would have the 12v to the other 2 pins.