Feature●This is a board that plays MP3 files recorded on a microSD card. The built-in amplifier allows you to solder the small speaker and use it immediately●Power supply voltage: 5V or 3.7V lithium-ion battery●Board Size: 0.9 x 1.3 inches (22 x 34 mm) (not including protruding part)●Micro SD Card Format Type: FAT or FAT32, File Format: MP3●Functions: Play, pause, next song, previous song, volume up, volume downDescription
This is a board that plays MP3 files recorded on a microSD card. The built-in amplifier allows you to solder the small speaker and use it immediately.