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About product and suppliers:
        Alibaba.com offers 7,977 40w speaker products. About 49% of these are speaker, 14% are professional audio, video & lighting, and 2% are led bulb lights. 

A wide variety of 40w speaker options are available to you, such as computer, home theatre, and portable audio player. You can also choose from active, passive, and fm. As well as from portable, mini, and wireless. And whether 40w speaker is 2 (2.0), 1, or 3 (2.1). 

There are 8,007 40w speaker suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 99%, 1%, and 1% of 40w speaker respectively. 

0w speaker products are most popular in North America, Mid East, and South America. 

You can ensure product safety by selecting from certified suppliers, including 2,370 with ISO9001, 787 with Other, and 673 with ISO14001 certification.