FOR DEVELOPERS ONLY , DO NOT BUY JUST DERIVE FROM IT , It's a light wight triggred invisible derivable , for profssional use , if you are playing in a crowded room or a club , so you can have every one listen to the same song at the same time , size is only 10 kb , there is no sound clip on the derive , i removed it coz it adds to the size of the finished product , hope to see you agin soon , take care & stay cool ; ) . d(-_-)b C.o.K.o