Looking for a truly offline, untrackable audio player

Hey everyone,

I’m looking for a truly private, offline, untrackable audio player that is still currently manufactured and sold (not discontinued).

• No Wi-Fi, no radio, no Bluetooth, no GPS • MicroSD card expansion. • A basic audio player where I can load files via USB and output audio through a standard 3.5mm headphone jack is fine (if it has more features or functionality thats fine too)

Alternative idea: As an alternative, I was considering buying an older used Google Pixel "a" series phone, installing GrapheneOS, never adding a SIM card, and keeping it permanently in airplane mode.

• Is a setup like that genuinely offline and untrackable, or are there hidden risks?

Does anyone have hardware recommendations that fit my criteria, or thoughts on the alternative? Would love to hear your tips and opinions