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does the gameboy advance sp have a headphone jack
To use headphones with the Game Boy Advance SP, you will need to have the Headphone Adapter. Any headphones with a 3.5mm jack will work with the adapter.
when did the Gameboy Advance SP come out
The Game Boy Advance SP was released in February 2003.

Question: is it a Nintendo product
Self-contained rewrite: is the Gameboy Advance SP a Nintendo product