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About product and suppliers:
        Alibaba.com offers 3,431 a megaphone products. About 57% of these are speaker, 9% are amplifier, and 7% are microphone. 

A wide variety of a megaphone options are available to you, such as home theatre, stage, and computer. You can also choose from portable, wireless, and mini. As well as from active, passive, and mini amplifier. And whether a megaphone is 1, 2 (2.0), or 3 (2.1). 

There are 3,212 a megaphone suppliers, mainly located in Asia. The top supplying countries or regions are China, United States, and India, which supply 97%, 1%, and 1% of a megaphone respectively. 

A megaphone products are most popular in North America, Southeast Asia, and South America. 

You can ensure product safety by selecting from certified suppliers, including 860 with ISO9001, 438 with Other, and 96 with ISO14001 certification.