S1 MP3 player
| Developer | Various manufacturers |
|---|---|
| Type | Digital audio player |
| Storage | Flash memory (64 MB – 2 GB), some with microSD |
| Display | LCD or OLED |
| Connectivity | USB 1.1/2.0 |
| Power | Internal Li-ion battery or AAA |
The S1 MP3 player is a type of generic, flash memory–based digital audio player (DAP) built around the Actions Semiconductor S1 chipset. Widely manufactured in China and sold under various brand names in the early 2000s, S1 players were known for their low cost, simple interfaces, and widespread rebranding. They became a popular entry-level option during the early years of portable digital music.