ISO: Mini "invisible" heaphones

my sortation center does not allow regular earbuds or bone conducting headphones. I cannot be with my own thoughts for hours on end. I really want to make this job work out for me.

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Does anyone have suggestions on mini earbuds that I can use during my shifts? I like the concept of loop earplugs but sadly theyre not Bluetooth. I've seen suggestions on other threads but the suggestions aren't truly inconspicuous.

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Bonus points if you have mini earbuds and a picture of how it looks like in your ear