1. Hearing machine is a device that provides ambient sound, relaxing music or white noise, which can help people relax, improve sleep quality and improve attention. It has a variety of audio options and timing functions, which can be adjusted according to personal preferences and needs.

2. The listening machine is especially useful in the following situations: for those who are easily affected by noise to fall asleep, those who need to improve their attention in the office or study environment, or those who want to create a quiet and peaceful atmosphere in yoga, meditation or relaxation exercises.