It started as a hobby, something they did in between classes and assignments at university. But by the time Sun Zebo and Hu Jiaqi graduated in 2012, it had become an obsession. While their classmates got busy looking for jobs that would set them on conventional career paths, the two friends focused on a slightly different pursuit – building the perfect little robot.
"We wanted to design something useful and affordable and cool," says Hu. "We didn't want to do anything else."