External USB Charge Backpack Chest Pack Casual Men s Travel Shoulder Bag Crossbody Sacoche Homme Sli
Item Type:Backpack
Size:17*9*35cm
backpack Color:Black, gray,darkblue,purple
Design:USB charging Travel Backpack
Note:There is no mobile power comes with the backpack inside.
If you want to use External USB Charge Function, you have to do as follows:
1.Buy a mobile power
2.Connect your mobile power with the USB interface inside the backpack
3.Connect your phone with the USB interface outside the backpack
4.Charging begins