Description 1. Double hole adjustable high and low pitched kazoo. 2. Rotate the cap to adjust the tightness of the membrane and change the range of vibration of the membrane. 3. The double hole design allows for a variety of high and low tones without having to change the membrane. 4. Tritan material body, safe and hygienic, comfortable texture. 5. Replaceable mouthpiece, safe and convenient, health and hygiene, with a free mouthpiece flute. Packing list 1 * kazoo Caution: 1. Only the contents above the package, other products are not included. 2. Manual measurement, there may be 1-3 cm error. Colors of items shown in photos may appear slightly different on computer monitors due to different monitor calibrations. Hope for understanding 3. If you need any help or any questions, please drop me a message. We will do our best to assist you and provide you with the best solution.