this is just to developers to derive from. so it HAS NO SOUND!!! to insert tunes and make your boom box, just follow the intructions: choose to derive it. sowhen previwer is opened, you ar going to see nothing. its an invisible box. so you must choose actions. select add - an action. Do it again. so in the 01 you are going to insert the sound. Where you see ogg file, and browse, click on browse and select a file from your pc on ogg format. so where you see trigger, insert a trigger. And click in "play action to be sure it works. so just save as ever and so on. you have nown your own sound box!