b>This is a laptop backpack with that will make your kids feel very comfortable. Feature: --Elders give gifts to children! Practical gifts and gifts for those who go to school, travel and work, a must for school supplies travel accessories and laptop accessories We have a USB charging cable and a headphone cable for our backpack.Instructions:1. Place the port for connection (usb cable and the output port of the headphone cable) from the inside of the backpack in the fixed case on the side of the backpack, and then close the small internal zipper to fix the two wires.2. Connect the internal headphone port to the phone, and connect the usb charging port to the charging port.3. Externally connect the earphone jack with the earphone, and connect the usb charging port with the charging cable that comes with the phone. Turn on your phone or charging treasure .Large Multi-Compartment and Pocket: --Separate Laptop Compartment: Fits UNDER 14 Inch Laptops and Macbook(Laptop over 14inch is not recommended) --Main Compartment: Thin clothes, headset, books, magazine, camera, etc Front Compartment: for iPhone, pen, keys, wallet, purse, glasses and other small items --Side Pockets:Durable Elasticized Pockets on both sides, fit water bottle, small compact umbrella and other items --Small Rear Pocket: cellphone, wallet, earphone If you have any questions, please consult us below, thank you!