Because of the sound quality, few mobile phones can play music in opus format. You can download a player that supports this type of format, and then you can play it after installation.

Opus format audio can be played using GStreamer, libavcodec(ffmpeg), Foobar2000, Firefox (15 Beta or newer), etc. It is recommended to play Foobar2000 1.1.14 beta 1 or newer version.

Android is an open source operating system based on Linux, mainly used in portable devices. There is currently no unified Chinese name. Most people in mainland China use Android (unofficial) or Anzhi (official). Andy Rubin founded two mobile operating system companies: Danger and Android. Danger was sold to Microsoft for US$500 million and became Kin this year, and Android was sold to Google for US$40 million. Android is the name of the open source mobile phone operating system based on the Linux platform announced by Google on November 5, 2007. The platform consists of an operating system, middleware, user interface and application software.