Generally, a file with a capacity of 4G can store about 3.8G, which is calculated according to 5~ 10M (general sound quality, pop song duration) of each music, that is, 700 ~ 1000 songs.

The actual available memory of 4G mp3 is only about 3.4G-3.7G For example, if you play music in mp3 format, the quality of network download is usually 128K, and a 3M-4M song can play about 900 songs, which means the sound quality is average. Auricularia auricula may not recognize the difference from 320K, but it can play songs with slightly better quality 192K. If the player supports lossless, a song is about 30M, then only 100 songs can be played.