Oval form soft rubber body for comfortable fit. Bass boosting earpiece. Powerful sound with 13.5mm Neodymium driver unit. 3.3ft (1.0m) color cord with nickel-plated iPhone compatible slim plug. White The best-selling Gumy earbud headphones are updated with a vibrant 8-color line-up. Gumy earbud headphones feature a soft rubber body with an oval shape that provides a snug fit and include a tangle-resistant 3.28-foot (1.0 m) color matching cord. The bass boosting design insures they look as good as they sound.