Durable Plastic Construction: Crafted from high-quality plastic, this bird whistle ensures durability and longevity for endless entertainment. Easy-to-Use Design: Simply apply the whistle to your tongue with the film facing outward, moisten it for a soft texture, and place it on the roof of your mouth to start creating unique sounds. Octave-Raising Capability: Elevate your voice by an octave with this bird whistle, enabling you to produce surprising sound effects that captivate audiences of all ages. Versatile Entertainment: Ideal for children and adults alike, this whistle is perfect for various occasions such as celebrations, parties, performances, birthdays, and more. Safe and Environmentally Friendly: Made from safe materials, this bird whistle offers a fun and eco-conscious way to enhance your vocal abilities and add excitement to any event. Description: Enhance your vocal range with the bird whistle Crafted for durability and safety, this environmentally friendly whistle is easy to use. Simply apply it to your tongue with the film facing outward, let it moisten in your mouth, then push it against the roof of your mouth with your tongue. Experience a one-octave increase in your voice, enabling you to produce unique sound effects. Perfect for children and adults alike, this whistle is ideal for celebrations, parties, performances, birthdays, and various events. Elevate your auditory experience with the versatile bird whistle Item Name: Bird Whistle Material: Plastic Features: Tricks Props, Portable Size, Party Gag Gift Size Details: 4.8cm/1.89" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 2 x Bird Whistles