Firefly phone for kids The Firefly phone is designed for kids. It's small and simple--with just five keys to make and accept all calls. It comes with a speed dial for Mom and Dad. Credit: Firefly Mobile Related stories: Cell phone targets tweeners The Matrix remembered at 20: Two decades on, share your own memories of the 1999 sci-fi action movie. Captain Marvel a soaring tale of self-discovery with a '90s riff: The first female-led Marvel movie subverts superhero tropes in the best possible way.