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 down


Description

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.