Amazon has opened preorders for the Poké Ball Plus and Super Smash Bros. Ultimate GameCube Controller. If you are interested, you can reserve the two accessories with the following links:
Update: The Poke Ball bundles for both games are also now available for preorder:
You can also check out the product description for the Poké Ball Plus below:
Feel like a real Pokémon Trainer as you travel through the Kanto region in the in the Pokémon: Let’s Go, Pikachu! and Pokémon: Let’s Go Eevee! games with Poké Ball Plus. Make a gentle throwing motion to catch a Pokémon to feel and hear in the palm of your hand. Take your favorite Pokémon out for a stroll in the Poké Ball Plus. Every accessory contains the Mythical Pokémon Mew. Just like with Pokémon Go Plus, you can use your Poké Ball Plus when the playing Pokémon Go on a compatible Smartphone to make your search for Pokémon.