Light Up Shutter Glasses El Wire Glasses as seen on The Today Show Shutter Shades are made with a Sturdy White Frame. The Light controller takes 2 AA batteries and has 3 settings: All On, Fast Blink, and Hyper Strobe. The battery pack can clip to anywhere on your upper body. I clip it to my belt or put it in my pocket. Don't buy cheap knockoffs that use 2 watch batteries. They often only last 15 minutes before dying! We offer a 30 day warranty on all our product. If for any reason your glasses break under normal usage, we will replace them within 30 days.