【Easy to Use】Color kazoo is easy to play due to its good internal structure, great for beginners to practice 【Hum, Don't Blow】 Kazoos Simple structure, no need to learn music theory, memorise sheet music or even practice when playing！Don't blow, Instead, you hum into it. Place the end against your lips, creating a seal. Then, hum or vocalize a sound while the kazoo is in your mouth 【Adjustable Tone】Mini kazoo can change the vibrations amplitude of the flute diaphragm by rotating the tightness of the diaphragm cover 【Material】Professional Kazoo is made of PP material, which is smooth and beautiful, and can be used for a long time 【Versatile Use】Perfect for various celebrations including birthday parties, Christmas, and New Year. Ideal as presents or prizes for children and students