Cool I Listen to APP is a mobile phone software that integrates music playing and online listening to books. This software not only provides users with music listening and downloading services, but also can listen to various popular audio novels online, including cross talk storytelling, history and humanities. It is very powerful. When we use this software to listen to music or read books, it is inevitable that some cached information will be generated in the software, which will occupy the memory of the mobile phone. Too much cache data will affect the running speed of the mobile phone, so it is necessary to clean the cache frequently.