There seemed to be something in the MP4 e-book. Could it be that he could listen to it? If it's real, teach me how to use it? Grateful

Yes, MP4(MP4 Part 14) is a video and audio format that supports digital coding and decoding. It can store audio and video content, and the audio part can include listening materials. To use the MP4 listening and reading function, you need to use a device called an "MP4 player." These players usually have a built-in audio decode that can decode the audio part of the MP4 file and play it back. The specific steps are as follows: 1 Put the MP4 file you want to listen to into the memory card of the MP4 player to ensure that the file format is correct. 2 Open the MP4 player and choose the option of "Listening to books" or "Reading". 3 In the MP4 player, select the MP4 file you want to listen to and open it. 4. Stop the MP4 player after hearing the content you want and remove the MP4 file from the memory card and put it into another device (such as a computer) to play. It should be noted that the MP4 listening function may not be applicable to all types of MP4 files. Some files may not support the listening function. In addition, using the MP4 listening function required a sufficient level of listening to hear the correct pronunciation and intonation.