Mask is a revolutionary, all-in-one, wearable device that combines a pair of HD virtual projection near-eye displays with high-fidelity audio headphones. Just plug Mask into any smartphone with its included HDMI cable and GO! Stream your favorite TV programs, movies, video games and more. Mask gives you an unparalleled "big screen" viewing experience wherever you go. Mask can also work as a standard pair of headphones, lasts for 4 hours on a single charge and easily recharges via micro USB connection.