... Over 8 years manufacture Passed Walmart ,Target ,SVC aduit glow in the dark supplies ,holiday flashing necklace,Party decorations,party favor,glow ... led lights in the necklace.2,3 models :altemate flashing all flashing simultaneously all costant on3,Replaceable CR1220 button battery can last 8 ... -12 hours long for Non -Stop use4,Passed the ROSH testing 5,Passed the U.S CPSIA ...