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About product and suppliers:
        Alibaba.com offers 1,647 duo mobile phones products. About 34% of these are mobile phone bags & cases, 11% are earphone & headphone, and 4% are charger. 

A wide variety of duo mobile phones options are available to you, such as apple iphones, samsung, and huawei. You can also choose from free samples, paid samples. 

There are 1,647 duo mobile phones suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of duo mobile phones respectively. 

Duo mobile phones products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 101 with ISO9001, 98 with Other, and 20 with ISO14001 certification.