To import music into the Winamp MP3 player, you have to copy MP3 files onto a micro SD card.

Though the MP3 files are stored on an SD card, he uses a cartridge interface, similar to that of a Nintendo 64 or Game Boy of yesteryear, to choose which MP3 to play from the SD card.

This is still a DIY device, because you’ll need to supply your SD card for storage, battery (1,200 mAh or 2,000 mAh), and 3D printed case… oh, and you’ll also need a Raspberry Pi Zero in ...