MP3 speakers

thingiverse

Speakers that play mp3 files directly from a USB memory or a micro SD card are available for purchase online. Plywood boxes with 95 mm inner height and width can be sourced from local stores called "100 Yen shops." The required components include the speakers themselves, an MP3 amplifier module, connectors, cables, screws, and a power source. The transparent panel of the speaker should be handled carefully to avoid losing its small screws. Damping materials are recommended for optimal performance.