What was the contents of original Gameboy?

Ive got a Gameboy that I bought at the time of launch bit having a hard time figure out what came with it. I have 3 similar posters that havent been opened and another larger poster.

I have the warning notice. I am definitely missing the warranty card and headphones.

One thing I noticed to others ive seen in the wild is my box has Styrofoam vs egg cartonlike packaging.

Im pretty sure i got additional posters from friends at the time but look to confirm the real contents of it.