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About product and suppliers:
        Alibaba.com offers 78,882 usb charging box products. About 16% of these are earphone & headphone, 14% are charger, and 1% are packaging boxes. 

A wide variety of usb charging box options are available to you, such as portable media player, mobile phone, and computer. You can also choose from bluetooth, microphone, and noise cancelling. As well as from in-ear, ear hook, and headband. And whether usb charging box is usb, 2.5mm, or 3.5mm. 

There are 78,884 usb charging box suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 99%, 1%, and 1% of usb charging box respectively. 

Usb charging box products are most popular in North America, Western Europe, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 12,107 with ISO9001, 6,442 with Other, and 2,383 with ISO14001 certification.