USB Charging port design(no Portable Charger),Built-in USB cable.Use it to connect the automatic power supply,and then connect the phone to the USB port with the USB cable,you can easily charge the phone. This small backpack has a large capacity,size 11.8*7*3.9 inch,it has six pockets,one adjustable umbrella pocket / water bottle holder,a anti theft purse pocket,a mobile phone pocket,three Big pockets. Shoulder bag is made of high quality nylon waterproof material.lightweight shoulder bag for women men sits nicely on your back/chest and isn't to chunky or clunky on body frame.if over shoulder bag gets dirty you could just wipe it off and it stays clean. Crossbody bag for men women with breathable mesh and padded strap design which doesn't make you sweat,satchel strap of men women sling shoulder bag is adjustable for as tight or loose,to hang as high or low as you want. Sling backpack bag for hiking walking biking cycling hunting travel school business gym camping beach and everyday using.perfectly works as sling shoulder pack bag,wear this sling bag over either shoulder comfortably,or across the chest to deter thieves and keep your hands free.