PACKAGE INCLUDED -- 1pc silver kazoo flute and 3pcs kazoo flute diaphragms. | HOW TO USE -- When playing, just put the big side in the mouth, no need to blow air, but hums the tune with your throat. If you just blow the air with mouth, the kazoo won't make nosie for you. | REPLACEMENT MEMBRANES -- The spare kazoo membranes allow you to keep making sounds. The kazoo membrane will be damaged if it exceeds its service life. We have prepared three extra membranes for kazoo. | GOOD COMPANIION -- it is a good companion for guitar, ukulele, violin, piano keyboard,slide whistle and many other musical instruments. It's portable that you can put it into your pocket or bag , you can enjoy your musical world everywhere anytime. | PRODUCT WARRANTY AND CUSTOMER SERVICE -- We provide 48-days money-back and 24-months warranty. Please feel free to contact us if you have any question.