Photo taken on July 21, 2018 shows robots at the 2018 China International Consumer Electronics Show in Qingdao, east China's Shandong Province. (Photos: Xinhua)

Visitors look at home appliances during the 2018 China International Consumer Electronics Show in Qingdao, east China's Shandong Province, July 21, 2018.

The four-day electronics show kicked off on Friday.

A visitor operates a robot during the 2018 China International Consumer Electronics Show in Qingdao, east China's Shandong Province, July 21, 2018.

The four-day electronics show kicked off on Friday.