Octave – Lunii Headphones Durable and comfortable, the Octave headphones are designed for children aged 3 to 8 years old. Like My Fabulous Storyteller, the volume is limited according to current regulations. At home or when travelling, the Octave headphones have a double jack plug so up to two people can enjoy a great shared listening experience with My Fabulous Storyteller. Headphones for everyone! Octave can be customised using the 6 free pairs of Lunii character stickers.