Using the D - Scanner is super easy. Just turn it on and start exploring the included themes and songs. You can listen to the cool FIRE! Theme or the other seven songs whenever you want. To enjoy the character dialogues, simply navigate through the options. When it comes to maintenance, keep it away from water and extreme temperatures. Don't drop it as it might damage the internal components. Also, if you're not using it for a long time, turn it off to save battery. That's all you need to know to have a great time with your D - Scanner!