Promotional Jewelry & Bracelets, Clear Plastic Necklace with Plastic Medallion and Blue LEDS - 3 Light Modes, Here's a bright idea! Kick off your next party in a fun way using these extra-large LED pendant necklaces on a 32" light up lanyard! With a wide variety of unique plastic medallions lighting up in blue, you're bound to find the perfect one for your next promotion. To activate the blue LED lights, simply press the on off button located on the rectangle above the pendant and select from three different light modes: fast flash, slow flash and steady on. Add an imprinted company name or logo and you'll be ready to go. 2 replaceable CR2016 batteries are included and installed. ... #LIT561 $4.28/each.