AYAMAYA LED Light Up Earrings, [4 Pairs] Light up Glowing LED Earrings Studs Party Dress Up for Kids Men/Women/Girlfriend/Boyfriend/Him/Her - (Green+Blue+Purple+White) 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. Steady light function only. To replace batteries, carefully unscrew the back of the battery housing. The batteries are very small, so keep a close eye on them. The glowing earrings are perfect for concerts, parties and sporting events. They look amazing in the dark and really light up the room and people's eyes with positivity. Just be ready for some compliments! Wear the sparkling crystal earrings during the day. Then turn the LED light on at night or when it's time to have fun! Package Contents: 4 Pairs (8pcs) Battery time: About 30 hours 4 Pairs(8pcs) of Led Earrings (batteries included) Colors included: purple + blue + green + white Main Material: Stainless steel earring with Cubic Zirconia stone Battery: 2*LR521 button battery (included and replaceable) Size: 0.31inch diameter X 0.79inch Length To replace batteries, carefully unscrew the back of the battery housing. The batteries are very small, so keep a close eye on them Comfortable stud earring, easy to wear Turn the LED off by pulling out the post slightly Auricular needle inserted into the ear plug base would light up the earrings Awesome and eyes-catching, stand out from the crowd with these LED earring Wear the sparkling crystal earrings during the day. Then turn the LED light on at night or when it&#039;s time to have fun! Perfect for outdoor activities, parties, night activities, concert and all kinds of night life fun. Ideal Christmas gifts for mom, girlfriend, boyfriends, couples, kids, friends, family gathering. Put this led earring into gift bag/christmas stocking. Must be a big surprise