Transfer music from your computer to a cell phone using a USB cable. PCs often treat cell phones as an external hard drive and allow users to add compatible music files to subfolders on the phone. Add only music file types your phone supports. Most phones support MP3 files while others also accommodate WAV, WMA, OGG and FLAC files. MP3 files are among the most popular and are usually playable on most devices. They also take less memory on the phone, making them a more desirable choice than WAV files, which are among the largest file type. Writer Bio