Game Boy Advance Wireless Adapter

The wireless adapter is also used in Pokémon games to download special data via the Mystery Gift option at various Pokémon-related events.

[4] Besides the Union Room in certain Pokémon versions, the wireless adapter only supports up to five players.

This feature can be accessed when the system is turned on only with the wireless adapter inserted, and no game cartridge.

[6] Nintendo of America no longer sells the device separately on its online store.

[7] Mario Golf: Advance Tour and the multiplayer NES Classics are missing this label, despite being compatible.

The wireless adapter
A Pearl Pink Game Boy Advance SP with the wireless adapter attached
The Wireless Adapter plugged in to a Game Boy Player