NXT Intelligent Brick

The robot's "brain!" The all-new NXT Intelligent Brick, your robot's '?brain,'? features a powerful 32-bit microprocessor and Flash memory, plus support for Bluetooth and USB 2.0! The NXT intelligent Brick includes: 32-bit ARM7 microprocessor. Support for Bluetooth wireless communication. 1 USB 2.0 port. 4 input ports. 3 output ports. Powered by 6 AA (1.5v) Batteries, not included, or lithium Rechargeable Battery (#9798), sold separately. Up to three NXT Bricks can be connected at the same time; however, you can only communicate with one NXT Brick at a time. This is the individual component, and does not include any sensors, motors, cords, software or other accessories; for the complete LEGO MINDSTORMS NXT set, please see item #8527.