Sony Corporation today announced the enhanced version of the SDR-4 II (prototype) with enhanced motion control and communication capabilities. It will be exhibited at ROBODEX2003, scheduled to take place from April 3rd to 6th at Pacifico Yokohama (with a press preview day on April 2nd), and various performances will be introduced. In addition, each series of AIBO will be exhibited, introducing softwares which will expand the possibilities of AIBO as an entertainment robot.