The device allows Pokémon Go players to continue hunting -- and catching -- Pokémon on the go without having to look at their phones, according to the Pokémon Go website. Based on the promotional images, it can be worn on a wristband or clipped to clothing, bags, etc. Earlier reports claim it'll be priced at $35, but it's unclear if that will change between now and September.
Descriptions on the website suggest the device will be pretty damn useful for avid players.
On catching Pokémon: "When a Pokémon is near, the light on the Pokémon GO Plus will flash. It will also flash and vibrate when you pass a PokéStop. Once a Pokémon is close, press the button on the Pokémon GO Plus to throw a Poké Ball. You'll only be able to throw a Poké Ball using Pokémon GO Plus if you've caught the Pokémon before. The Pokémon GO Plus will flash and vibrate to let you know if you were successful in catching the Pokémon."