I recently bought a Game Boy Advanced SP. I've never owned one before, so I'm definitely the "new kid on the block". I saw this kit listed with the SP so, foolish me, I just "assumed" that it was meant for the GBA SP. Well, after I received it and opened up the kit packaging, I found that it IS NOT for the SP. There is NO WAY that this fits! The plug for the ear buds is the wrong type of connector, to say nothing about the size and shape of the protective cover and holder case for games, are the wrong sizes completely! This may fit other GBA, but it DOES NOT work with the SP.