The nation's tech companies are again making a mark at the International Consumer Electronics Show, which opened on Tuesday in Las Vegas.

Hundreds of Chinese exhibitors from provinces such as Guangdong and Zhejiang are a major presence at the globe's most popular gadget fair, where they aim to show the world how their products will define the future of entertainment and communications.

Industry leaders such as ZTE Corp, Lenovo Group Ltd and Huawei Technologies Co Ltd are all making their usual appearance at this year's CES, but many smaller vendors are also showing off their wares.