A recorder is a device used to record sounds. It can record various sounds such as human language, singing, and musical instrument playing. The simplest recorder is a tape recorder. With the continuous upgrading of technology, today's digital recorders can use digital technology to store sound, and the sound quality is clearer. The tape recorder allows us to record many precious sounds in daily life, such as the voices of family members, blessings on anniversaries, the growth of children, etc. These precious sounds will accompany us throughout our lives and become unforgettable memories.

In the field of music creation, the recorder is also a very important tool. Creators usually need to use a tape recorder to record their creative inspiration so that they can review and modify it at any time. The recorder can record the main melody, melody supplements, lyrics, etc. of the song to facilitate song production. At the same time, many musicians use tape recorders to record creation and performance in real time, constantly revising, auditioning and improving until they finally determine the best version.

In legal trials, the tape recorder is also one of the indispensable tools. Using a tape recorder to record every detail of the trial can ensure the fairness of the trial process and the authenticity of the evidence. For some matters that are oral agreements, a tape recorder can be used to prove them, reducing disputes and misunderstandings. In addition, some long court hearings are recorded through a tape recorder. Judges and lawyers can check the trial process at any time to keep their thinking clear and ensure the fairness and objectivity of the trial.