What audio file formats are supported when playing music from a USB drive?
The PartyBox 310 supports MP3, WMA, and WAV (.wave) file formats from a USB storage device. The USB storage device must be formatted as FAT16 or FAT32. The speaker plays audio files from the root folder to the last level of subfolders in alphabetical sequence, supporting up to 8 levels of subfolders. (Page 10, 15)
From the official Jbl Partybox 310mc Portable Party Speaker manual, page 10
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