Amulet Wallet

The Amulet Wallet is a special equippable accessory item that is obtained from Stardeer Coffee from Wendy Wu: Homecoming Warrior Kick-in Challenge. As with all Special Items, Nina Wu shows up at Stardeer Coffee to drink a type of hot chocolate that hasn't been brewed before; in this case, the Amulet Wallet is the first item Nina rewards the Yin Warriors with. When the Amulet Wallet is equipped, it doubles the money the Yin Warriors obtain when they defeat enemies in battle.

In-game description
''Double the money you get in battle! (Extra Money)''