The walkman needs to be safe for use in contact with the skin.
The water needs to be drinkable. Packaging directives look at things like phthalates in the bottle... but don't consider contents within the bottle which aren't part of the beverage or beverage serving mechanism.
So... they can, legally, pretty much do whatever the hell they want, as the Mp3 player does not need to be consumable, the water and bottle will be quantified as safe by themselves, and the thing as a whole (bottle + water) is just treated as packaging, so doesn't need to be consumable.
All in all it's the kind of thing that isn't quite covered by product safety standards, as it's so irregular.
Most of the world doesn't have those regulations. Or, in other words, cue the surprise of all the Europeans when they realize that Kinder eggs are illegal in the US.
The 'which of these is illegal in the US?' meme juxtaposing a gun and a Kinder Surprise was rather popular a while back. We picture Americans trying to swallow the eggs whole and choking, but playing with guns safely and responsibly.
The walkman needs to be safe for use in contact with the skin.
The water needs to be drinkable. Packaging directives look at things like phthalates in the bottle... but don't consider contents within the bottle which aren't part of the beverage or beverage serving mechanism.
So... they can, legally, pretty much do whatever the hell they want, as the Mp3 player does not need to be consumable, the water and bottle will be quantified as safe by themselves, and the thing as a whole (bottle + water) is just treated as packaging, so doesn't need to be consumable.
All in all it's the kind of thing that isn't quite covered by product safety standards, as it's so irregular.