Here, you can scan various QR Codes and add the Pokémon as 'Seen' on your Pokédex. The QR Scanner is a new feature that can be found in the main menu of the game. This feature allows for you to scan QR Codes on various items, including screenshots, merchandise and special promotional leaflets, in order to register Pokémon in the Pokédex.
The QR Scanner is a new feature in Pokémon Sun & Moon. Black: Victini & ReshiramWhite: Victini & Zekrom.