I pillaged a 9V battery out of one of the smoke detectors in the house for the controller, and my small mag light, and a couple stereo remotes for the double As for the car.
It is suprisingly fast for a $21.95 RC car

Too quick for my poor hand-eye coordination in a small area like mom's kitchen, and not fast enough to catch her chihuahua.
I hope my house don't burn down.