Probably a modern version of a Mao badge.
A Chairman Mao badge is a small pin or brooch that features an image of Mao Zedong, and that normally was worn pinned to the wearer’s chest. The standard Mao badge is 1-3cm in diameter, made of aluminium, red in colour, and features a raised embossed image of Mao’s head in profile, usually facing towards the left. Beyond this basic design, however, tens of thousands of more complex designs were also made, in a variety of sizes, shapes and materials (including porcelain, plastic, bamboo and many others). Badge content was also diverse: they included references to revolutionary history, commemorated important events, and played a role in defining identities in the factional struggles during the Cultural Revolution. While exact production numbers are unknown, it is estimated that between 2 and 5 billion badges were made, mostly during the years 1966-1969. During the early years of the Cultural Revolution (1966-1969), most people owned or desired to own one or a number of badges, and many people, especially Red Guards, wore them daily. Because of this, Mao badges constitute an important part of the visual environment of the Cultural Revolution, and play a key role in many people’s recollection of the Mao era.
After Mao’s death in 1976, the government recalled and re-cycled badges, and while it is estimated that up to 90% of badges were destroyed in this way, millions more remained in private hands.