Soothe the gums and be entertained with this Lil' Critter Sing & Smile Teether by VTech. Make teething fun with the soft fish that soothes teeth pain and sensitive gums while the friendly penguin teaches numbers, colors and animals. When your little one shakes the penguin rattle, the magic sensor triggers playful sounds. The red heart lights up and flashes to the beat of the music and sounds for fun interaction. Shake and learn with the adorable penguin teether toy.