This is a prebuilt MLT-JR tracked robot platform and is equipped with 12V 32mm motors, motor controller, and a authentic Arduino for autonomous control.
We have a bunch of power supplies laying around. This is a bag of 5 randomly selected power supplies (wall warts). 110VAC input. About 6 inches of wire with no ends. If you need a power supply (wall wart), you can't beat this deal.