The chest includes a hinge and magnet to reveal a cassette tape!!

Sound wave was always one of my favourites. He seemed unfairly overpowered- showing up to battle with a mini militia ready to launch. This is my very first time trying a pin with a hinge: His chest opens up!!! Available as a pack bundle with his little minions 

Silver Plated, Soft Enamel, 2 rubber backers