Win every ugly Christmas sweater contest with this super cool virtual Crackling Fireplace Ugly Christmas Sweater. This brilliant shirt has a hidden pocket for your mobile device which displays an animated crackling flame. Simply download the "Morph DigitalDudz" app to display the animated fire! To start the fire, tap your mobile device and then double tap to extinguish the fire! Digital Dudz Ugly Christmas Sweaters will fit most mobile devices up to 5.4in x 2.9in (13.6cm x 7cm) - Please note, the Samsung S6 and iPhone 6+ will NOT fit. Apple devices must be running iOS 8 or greater. Android must be running Android 4.0 or greater. Materials: 100% Acrylic knit.