QRIO ("Quest for cuRIOsity", originally name Sony Dream Robot or SDR) was to be a bipedal humanoid entertainment robot developed and marketed (but never sold) by Sony to follow up on the success of its AIBO toy. QRIO stood approximately 0.6 m (2 feet) tall and weighed 7.3 kg (16 pounds). QRIO's slogan was "Makes life fun, makes you happy!"