NOTE: Mobile power/charger not included How to Use the USB Port? Step 1: Plug the charging cable inside the bag into your OWN portable power bank. There is a inside pocket for your portable power bank. Step 2: You just need to plug your phone power cord into the usb port outside thebackpack. Step 3: Plug the other end of your phone power cord into your OWN phone charging port. When using the usb port, please check if your phone is charged or not. lf not,Please make sure your OWN power bank has plenty of power left. Premium Materials & Practical Design Great Product Features for Your Trust 1. Padding Breathable Mesh shoulder 2. Splash-Resistant Polyester 3. Adjustable Buckle Chest Strap 4. Adjustable Waist Buckle Ronyes is a brand committed to providing you with satisfactory products and well service through continual improvement... Previous page Next page 1 Multiple Pocket 2 Large Capacity Adjustable Board Straps Adjustable Board Straps to carry verticalboard/skateboard/yoga mat or anysuitable equipment(Wheelbase less than 13 inches) Concealed Mesh Pocket The basketball net can holds basketball, Baseball, football, soccerball which is very convenient to free your hands