Mardi Gras LED Jumbo Bulbs Strand Necklace is fit for a King! Deck out your krewe this Mardi Gras and take to Bourbon Street with Light Up Mardi Gras Jumbo Bulb Necklaces. Perfect for a night out on Fat Tuesday or a night out in general, be it for a concert, festival, Jazz Fest itself, the club or a house party. To activate your Jumbo Bulb LED Light Necklace, remove battery protector and press button located on battery house for 3 light functions: Strobe, Fast Flash, and Random Flash/Pulse. Mardi Gras LED Jumbo Bulbs Strand Necklace comes ready to use with 3 replaceable AG13 Batteries.