Shenzhen Kingmodern Industry Co., Ltd, which is located in the coastal city of South China Shenzhen, contains great technological strength that can not be neglected by Chinese manufacturing industry. Since its earlier stage, Kingmodern has ranked among the leading group of the digital player manufacture. Therefore, Kingmodern was certainly not going to give up the research of advanced product in digital field. Early last year, in an exclusive interview with hc360, its senior leader said that Kingmodern Group had long since spent capital and technological resource in the research of PM4, giving up great profit in the MP3 field, which made the manufacture industry astonished. In order to assure the smooth execution of the PM4 product plan, the group leader set up Kingmodern Technology Development Co., Ltd in the same month, which was appointed as the special team taking in charge of seeking, digesting and making use of the most advanced technology. The action of taking bold steps in surpassing history and MP3, perfecting MP4, and planning to develop most challenging and advanced technological products---PM4, forecasts that the focus of PM4 in China has come into being.