this bag u need to buy ,without bag

① protect the charging port 0.7A: USB output 5V/0.7A ②: charge, is being charged when the red light, blue light at the end. ③ the DC IN: charger jack, standard charger 5V/2A ④: battery indicator, a bright light indicates 25 percent of the electricity; two bright light indicates 50 percent of the electricity; three bright light indicates 75 percent of the electricity; 4 bright light indicates 100% of the electricity ⑤ OFF-ON: USB port, the output switch and battery indicator. ⑥ Fast charging port 2A: USB port output 5V/2A

 给HTC手机充电

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 双USB同时充电