You’ll be warm in this OH SO COOL EL Half Face Light Up Mask! This sound activated masks lights up with the sound! Watch as the mask reacts to the sounds around you: Music, Talking or sounds from your favorite haunt, it features a switch to control the level of intensity (light to sound) and an easy on/off toggle. 2 AAA batteries required in a hidden pocket with easy accessibility. Velcro closure for OSFM, Spot clean only.