These Ecto Goggles would be something every self-respecting Ghostbuster should have in their possession! Good for detecting paranormal activity (using your imagination)! Goggles have one eye that lights up with a shade of "slime green" in one lens, and gives a realistic movie look! On/off switch allows you to turn on the light, which requires 2 AA batteries. (Not included). The elastic headband holds the goggles securely in place.