别优 通用手机充电宝20000毫安金属外壳移动电源20000毫安

①首创行业大容量铝合金外壳，真正20000毫安劲容量，加容不加价 

②智能高效输出，可充iPhone 5S十次，四核智能芯片 

③2.1A极速快充，自充电速度快一倍 

④双USB输出接口，手机/平板同时充

如果故障 1 对 1 交换 

BIUTOYU Power Bank 20000 mAh

① industry's first large-capacity aluminum housing, the real strength capacity of 20,000 mAh.

② intelligent and efficient output, rechargeable iPhone 5S ten times, quad-core smart chip.

③2.1A speed fast charge, self-charging twice as fast.

④ dual USB output interface, the phone / tablet while charging.

If faulty 1 is to 1 Exchange