For true MP3 file portability (USB drives, old MP3 players), purchase DRM-free from iTunes/Amazon/7digital.
| Device | Capacity | Battery Life | Best For | |--------|----------|--------------|----------| | SanDisk Clip Sport Plus | 32GB + microSD | 20 hours | Fitness | | Sony NW-A306 | 32GB + microSD | 36 hours | Audiophiles | | iPod Touch (used) | Up to 256GB | 40 hours | iOS ecosystem | | Your smartphone | 64GB–1TB | Varies | Most convenient | | USB stick in car | 16–64GB | N/A | Vehicle playback | top 100 english songs zip file download portable
Which of those would you like?