The GO Brain is essential for any VEX GO build that is run by a VEXcode GO project. The Brain runs user projects and controls the devices connected to the Brain. Features: * Four number ports (1 - 4) for GO Motors, GO LED Bumpers and GO Electromagnets. * One Eye Sensor port that supports one Eye Sensor. * One Battery port that supports on GO Battery. * Bluetooth wireless connectivity to devices running VEXcode GO.