PicoBotz by Elenco is a programmable build-it-yourself robot. The PicoBotz canbe programmed with up to 180 instructions. The programs are writtenon a PC running Windows and downloaded into the PicoBotz throughan RS232 port.When the PicoBotz is switched on, if the programming cable is pluggedin, then the PicoBotz waits for communications from the PC. If theprogramming cable is unplugged,then the PicoBOTZ starts toexecute its current program.You can program therobot to avoidobstacles, follow a lineand react to sound.Comes with softwareand cable. Movement: Two (2) wheels driven by two (2) DC motors.Control: Sound sensor including condenser microphone,infrared light sources, and light detectors.Requires 2 AA batteries.