- Package Includes: 20 Plastic Emoji LED Whistle Keyrings in assorted colors. Dimensions: 6.4 x 3.3 x 3.3 cm. Each whistle comes with a button cell battery (included) and features a straightforward ON/OFF switch. A convenient split ring allows easy attachment to keys, backpacks, or bags. - Bright LED Fun: These LED whistles emit colorful, flashing lights that grab attention, making them ideal for enhancing any event atmosphere. Use them at weddings, birthdays, clubs, New Year celebrations, Halloween, Christmas, carnivals, and music festivals. Not just a toy, they also serve as effective noise makers for sporting events. - Perfect for Kids: Designed as party favors, these emoji LED whistles are great gifts for preschool and kindergarten children aged 3-7. Suitable for party souvenirs, promotional gifts, thank you items, and keepsakes, they make excellent additions to Christmas stockings and party bags, bringing joy to young guests. - Endless Entertainment: Glow-in-the-dark and whistling in the dark make these whistles a hit for children. They create fun sounds and vibrant light effects, ensuring a memorable experience at any children's party. The bright lights and assorted colors add excitement and enjoyment to evening events. - Ideal Applications: Use these keyring whistles as engaging giveaways at children's parties, festive gatherings, or as festive fillers for holiday crackers. Perfect for keeping young ones entertained during nighttime events, these whistles are a practical choice for parents looking to add excitement to celebrations.