USB Cassette Capture Radio Player Portable USB Cassette Tape to MP3 Converter Capture Audio Music Player Tape Cassette Recorder - AliExpress
How to convert video to other portable video players?
Download Video to Video converter (Portable) v2.9.6.10 (freeware) - AfterDawn: Software downloads
Portable media player - Wikipedia
Amazon.com: 32GB Mp3 Player with Bluetooth 5.0 - Aiworth Portable Digital Lossless Music MP3 MP4 Player for Kids with FM Radio HD Speaker for Sports Running Super Light Metal Shell Touch Buttons :
Free MP4 to MP3 Converter - Convert MP4, M4A, M4B, AAC files to MP3
TSV Portable Cassette Player, Tape to MP3 Format Converter via USB, Convert Walkman Compatible with Laptop, PC, Earphone - Walmart.com
Portable Bluetooth MP3 Player HIFI Music Speakers MP4 Media FM Radio Recorder | eBay