I bought one of these: https://www.iflash.xyz/store/iflash-quad/ https://www.iflash.xyz/store/iflash-quad/, four high endurance 256 micro SD cards, and an iPod

I bought one of these: https://www.iflash.xyz/store/iflash-quad/ https://www.iflash.xyz/store/iflash-quad/, four high endurance 256 micro SD cards, and an iPod 5.5 off eBay a while ago. I converted all my FLAC files to Apple Lossless and loaded it on that. I plug in wired with Focal Batys. It's a dream on a long flight. Only downside is I now have to carry around a 30 pin iPod cable or a USB-C to 30 pin adapter now to charge it.