Adjustable Flash Modes: Enjoy three different flashing modes-steady on, slow , and fast -allowing you to customize your Christmas accessories to match the mood and enhance your holiday spirit Easy to Use & Battery Operated: Simple on/off switch and replaceable batteries provide hassle-free operation, making these Christmas light necklaces an effortless addition to your seasonal accessories collection Comfortable Design: Made from lightweight, flexible materials, these light up necklaces ensure comfortable wear throughout long Christmas parties while maintaining durability for repeated use Versatile Festive Accessory: Ideal for Xmas party favor supplies, these necklaces complement any Christmas light decoration or holiday outfit, creating a cohesive and joyful celebration look Bright LED Bulbs: Each necklace features 9 vibrant LED bulbs that deliver eye-catching colorful light, perfect to brighten any Christmas outfit or party setting with festive charm