N-C Light Up Flashing Shutter Neon Rave Glasses -Red El Wire Flashing LED Sunglasses for Party Prop Favors- Decorations- Toy Gifts- Costumes.

Single button control, easy to use. No heat, no radiation, harmless to human body. A novelty party gift for all ages. Material: frame material PC, light line material PVC. Power: 2 AA batteries (not included). Light mode: constant bright, slow flash, fast flash, off. Packing list: 1* Light glasses 1* Battery controller Warm Tips: When the battery pack is energized, sometimes you will hear the controller emit a slight buzz, which is a normal phenomenon and not harmful to human body. The EL line glow requires a high-frequency pulsed power supply that happens to fall at a frequency that is more sensitive to hearing. But it's a faint sound that most people accept easily, especially when you hide the bag in your waist or pocket.