My friend just bought Tekno, and to be honest, I'm not sure you can call it "artificial intelligence" by any stretch of the imagination. It's loud and annoying. Made in a cute plastic shape, it doesn't really "fetch" anything (the "fetch" command causes it to walk forward - the only way it can walk). The only real sensor is the light sensor between the eyes; the other "sensors" are really buttons - whoopie. It doesn't sit, it can't lay down, it has no mouth, it doesn't respond to anything but noise, and it simply does not learn anything. Its "tricks" all include pressing buttons and the robot responding in a pre-programmed way. "He has a keen sniffer; he'll take a wiff of anything you PRESS against his nose" [emphasis mine] Boring. Don't waste your money. My friend is returning his.