USB PORT AND PASSWORD LOCK DESIGN: Equipped with a built-in USB charger and charging cable, this USB backpack provides a more convenient way for you to charge your phone while walking. Please note that this backpack cannot be powered by itself. The USB charging port only provides a convenient charging method, and the unique password lock design provides you with security protection
FUNCTIONAL&SAFE: A luggage strap allows travel laptop bag fit on luggage/suitcase, slide over the luggage upright
