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About product and suppliers:
        Alibaba.com offers 558 function 1 sound system products. About 38% of these are speaker, 32% are home theatre system, and 4% are professional audio, video & lighting. 

A wide variety of function 1 sound system options are available to you, such as computer, home theatre, and karaoke microphone. You can also choose from wireless system, mini system, and mini. As well as from active, passive, and professional amplifier. And whether function 1 sound system is 1, 3 (2.1), or 6 (5.1). 

There are 560 function 1 sound system suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and South Korea, which supply 99%, 1%, and 1% of function 1 sound system respectively. 

Function 1 sound system products are most popular in South America, Africa, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 100 with ISO9001, 55 with Other, and 12 with ISO14001 certification.