Cheetah Mobile Inc. along with its subsidiaries, engages in provision of internet services, artificial intelligence, and other services in the People's Republic of China, Hong Kong, Japan, and internationally. The company's internet products include Duba Anti-virus, an internet security application to protect users against known and unknown security threats and malicious applications; and Clean Master, a junk file cleaning, memory boosting, and privacy protection tool for mobile devices. It also offers value-added products, such as PC and mobile products, as well as wallpaper, office optimization software, and others; E-Coupon vending robot, a delivery and reception robot, which includes marketing campaigns and services; and multi-cloud management platform and overseas advertising agency service. In addition, the company provides mobile advertising services; duba.com personal start page that aggregates online resources and provides users access to their online destinations, such as online shopping, video, online game, travel, and local information; artificial intelligence and other services; and premium membership services. It serves mobile advertising networks and partners, e-commerce companies, mobile application developers, and mobile game developers, as well as individual customers. The company was formerly known as Kingsoft Internet Software Holdings Limited and changed its name to Cheetah Mobile Inc. in March 2014. Cheetah Mobile Inc. was incorporated in 2009 and is based in Beijing, the People's Republic of China.