Back by popular demand, we now stock CPSC approved flashing pacifier necklaces! This is one of our most popular of all time novelty battery operated products! For safety the lanyard has breakaway functionality to avoid being a possible choking hazard. Each binky contains a Red, Blue, Green, and Yellow LED for a bright and powerful combination. The LED pacifiers are powered by 3 AG10 Batteries (included). Play responsibly don't give LED pacifiers to children under the age of 5, intended for novelty use only.