Meizu is a technology company specializing in the research, development and production of multimedia terminals, headquartered in Zhuhai City, Guangdong Province, China. Meizu mobile phone is one of the main products and enjoys a certain market reputation for its excellent design and performance. Charm Purple is a sub-brand of Meizu brand and belongs to one of Meizu's product lines. Charm purple mobile phone is different from Meizu mobile phone in design and function, aiming at different user groups or market positioning. Meizu passed CNAS national qualification certification through self-built scientific research laboratory, which provided professional technical support for the research, development, production and testing of Meizu 5G mobile phone.