Make a case that your brand is one that can't be beat with this "No. 1" LED light-up pendant necklace! This dazzling pendant measures 1" and comes attached to a 24" necklace. It features high-powered amber colored LED lights and a multi-mode switch to put on a dazzling display. What a perfect handout for sporting events, school spirit days, stadium giveaways, company fundraisers and so much more! Two Cr-1620 batteries are included, installed and replaceable. Customize each clear pendant or white battery case with a brand imprint to maximize corporate exposure.