EYEFLASHES are super fun customizable led glasses! Connect to your phone's app, Magic Glasses, via Bluetooth, and you'll be ready to customize your light up glasses and start standing out. You can also access other EYEFLASHES users' creations and share your own creations through the app. Great for people who want to express themselves at halloween, new years parties, concerts, raves and sporting events! The bluetooth glasses will match nicely with a wrench mask. The led glasses charge through included USB cable (unlike Chemion glasses, which require AAA batteries).