These cabins run off of an AC/DC power pack.  We included one with the cabins that can power three devices.  We took a picture of the power pack.  The cabins are in perfect condition, they look like they were never displayed.  We took a few pictures with the lights dimmed so you can see how nice this will look on a darkened display.  The pictures are from the actual product you will receive and are not stock images.   Shipping is free and I ship within one day from payment.  Thanks for looking!