Experience a new realm of gaming with the Knuckles Sky Sanctuary Zone REALMz™ Wireless Controller. Collect the immersive universe from your favorite games with this one-of-a-kind controller featuring a figurine living inside the grip. Discover the world inside your game and the controller with its unique, multi-layer design showcasing iconic scenes from your favorite titles. With a built-in, rechargeable battery you won't need to purchase single-use batteries, so you can save the planet and your bank account. You'll need to call it quits before the controller with up to a 40-hour battery life. Get comfy on the couch for a long day of gaming with the 30-foot wireless range and expertly designed shape. Effortlessly change the LED lighting effects using the ABXY buttons to add another level to the look of your controller. Explore the realmz with this uniquely immersive controller, officially licensed by Nintendo® and SEGA®.