Using these Tonies foldable headphones is easy. First, adjust the headband to fit your child's head using the three available size settings. Then, connect the detachable audio cable to your Toniebox. You can enjoy hours of listening while keeping the volume at a safe level for your child. When you're on the go, simply fold the headphones for easy transportation. Remember to keep the headphones away from water and sharp objects. If they get dirty, use a soft, dry cloth to gently wipe them clean. This will help keep your Tonies headphones in good condition for a long time.