Description: 【Double Hole Design for Richer Sound】: This innovative kazoo features a double hole design, allowing for adjustable tones and a richer sound experience. The rotatable membrane cover lets you fine tune the tension, altering the vibration range of the membrane to independently adjust both high and low notes 【Replaceable Black Membrane】: Crafted from special acoustic materials, the replaceable black membrane significantly enhances the kazoo's sound quality. This feature ensures that you can maintain optimal performance with ease 【Fun and Easy to Play】: Great for beginners and seasoned musicians alike, this kazoo instrument is easy to play and adds fun accompaniment to other instruments like guitars, ukuleles, or wind instruments, enhancing any musical atmosphere 【Portable Design】: Lightweight and equipped with a hanging rope that can be attached to the body of the kazoo like a necklace, it allows you to play anytime and anywhere. Additionally, it features a silicone cover on the mouthpiece to keep it clean 【Simple Structure】Simple structure, no need to learn music while playing, no need to recite music score, need to practice, great for use on the road, around campfires, during camping trips, hikes, backpacking adventures, activities, and travels Specification: Material: ABS Silicone Size Chart: Kazoo 10.8cmx2.8cm/4.25inchx1.10inch Package Includes: 1 Kazoo 1 Lanyard 10 Membranes 1 Membrane Box 1 Spare Kazoo Head 1 Instruction Manual Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.