Inside this factory in China, Ex-Robots engineers are working on developing humanoid robots...with a focus on enhancing facial expressions and emotions.

So far, the main purpose of these hyper-realistic robots has been for display in museums. Ex-Robots Chief Executive Li Boyang says humanoid robots are the most complex type of robot to build.

The company uses artificial intelligence to teach robots how to recognize human facial expressions and mimic them. Prices range from 1.5 to 2 million yuan, or roughly $280,000 dollars.

Video by REUTERS