AYAMAYA 1 Pair Light Up LED Earrings Studs Glowing Flashing Stainless Steel Earrings Studs Dance Party Accessories unisex for Men Women Package Contents: 1 Pair of LED earrings comes with 2 batteries. Each pair of batteries lasts about 30 hours so You can go for a whole weekend festival! To activate your Light Earrings, push the earring through your earlobe's pre-pierced hole and firmly attach the other half on back, light will turn on and stay on. Wear the sparkling crystal earrings during the day. Then turn the LED light on at night or when it's time to have fun! To replace batteries, carefully unscrew the back of the battery housing. The batteries are very small, so keep a close eye on them. The light up earrings come in 8 vivid colors and 1muti-color. Collect the whole set of 9 fun colors and light up every room!