Visitors are seen at Hisense's booth at the 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, Jan. 7, 2020. The four-day, annual tech show, opened on Tuesday, drew more than 4,500 exhibitors from over 160 countries and regions, including around 1,000 Chinese companies, according to the Consumer Technology Association. (Photos: Xinhua)

People visit Chinese drone maker DJI's booth at the 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, Jan. 8, 2020. The four-day, annual tech show, opened on Tuesday, drew more than 4,500 exhibitors from over 160 countries and regions, including around 1,000 Chinese companies, according to the Consumer Technology Association.

A man visits TCL's booth at the 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, Jan. 7, 2020. The four-day, annual tech show, opened on Tuesday, drew more than 4,500 exhibitors from over 160 countries and regions, including around 1,000 Chinese companies, according to the Consumer Technology Association.

A woman walks past a poster at the 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, Jan. 7, 2020. The four-day, annual tech show, opened on Tuesday, drew more than 4,500 exhibitors from over 160 countries and regions, including around 1,000 Chinese companies, according to the Consumer Technology Association.

An exhibitor displays a tablet computer with a foldable screen at Lenovo's booth at the 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, Jan. 8, 2020. The four-day, annual tech show, opened on Tuesday, drew more than 4,500 exhibitors from over 160 countries and regions, including around 1,000 Chinese companies, according to the Consumer Technology Association.

People visit Skyworth's booth at the 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, Jan. 9, 2020. The four-day, annual tech show, opened on Tuesday, drew more than 4,500 exhibitors from over 160 countries and regions, including around 1,000 Chinese companies, according to the Consumer Technology Association.

An exhibitor displays a smart suitcase which can follow its owner automatically at the 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, Jan. 9, 2020. The four-day, annual tech show, opened on Tuesday, drew more than 4,500 exhibitors from over 160 countries and regions, including around 1,000 Chinese companies, according to the Consumer Technology Association.

People visit Sogou's booth at the 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, Jan. 9, 2020. The four-day, annual tech show, opened on Tuesday, drew more than 4,500 exhibitors from over 160 countries and regions, including around 1,000 Chinese companies, according to the Consumer Technology Association.

People visit Lenovo's booth at the 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, Jan. 8, 2020. The four-day, annual tech show, opened on Tuesday, drew more than 4,500 exhibitors from over 160 countries and regions, including around 1,000 Chinese companies, according to the Consumer Technology Association.

People visit Skyworth's exhibiton booth at the 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, Jan. 9, 2020. The four-day, annual tech show, opened on Tuesday, drew more than 4,500 exhibitors from over 160 countries and regions, including around 1,000 Chinese companies, according to the Consumer Technology Association.