On the world market, the MP3 player launched by iPod almost swept the global market, but as the MP3 market gradually saturated, people's enthusiasm for the MP3 launched by iPod also declined. At this time, Apple launched the iPhone, once again leading the world trend. Since the launch of the iPhone, sales of this mobile phone have soared, and other brands have also started to launch accessories for the iPhone. Recently, a set of iPhone accessories was launched abroad, making the use of iPhone more convenient.