The bipedal robot, which stands nearly two feet tall, can do more than just sing and dance. It uses artificial intelligence to recognize patients' faces and engage in conversation – in various languages. Built by SoftBank Robotics of San Francisco, NAO has 25 degrees of freedom to move and adapt to its surroundings, seven touch sensors, four directional microphones and speakers and two 2D cameras. CHOP initially plans to use the robot as a welcoming tool, one that will regularly participate in entertainment programs, including the hospital's live television shows. Next week, it will participate in a Bingo program, calling out the numbers and announcing the names of children who win. "And that's just the tip of the iceberg," said Stephanie Brennan, strategic operations manager for CHOP's child life programs.