How to download Japanese for mp3 player with its own memory?

mp3 player can be used to realize USB transmission to download and transmit songs.

first, if MP3 supports expansion of memory card, you can use the memory card to download songs. 1. Take a memory card and install it on the mobile phone; 2. Turn on the mobile phone, download the required songs on the mobile phone and save them on the memory card; (or download it to the memory of the mobile phone and then copy it to the memory card. 3. After downloading the song, take out the memory card from the mobile phone and insert the MP3. Second, if the mobile phone supports OTG function, MP3 can be directly connected to the mobile phone to download songs. 1. MP3 uses data cable +otg cable to connect the mobile phone; 2. Turn on the mobile phone to download the required songs and save them directly in MP3 memory; 3. After downloading, disconnect and download the song.