After downloading a free Digital Dudz App (unique to your mask) on your smart phone. Slide it into position in your full over the head latex mask, launch the animation and bring your mask to life. Mask pocket can accommodate a mobile device up to 6 inches x 3.25 inches (pretty much ever including the Galaxy Note II) Apple devices must be running iOS 5 or greater. Android must be running Android 2.2 or greater.