Omaya, the leading name in quality backpack and traveling bags has introduced the  Omaya Anti-theft Backpack with USB charging port as well as Earpiece or headphones port. This allowed you to charge your phone and listen to music simultaneously. You can charge your phone while listen to music from another device say iPad. The  Omaya Anti-theft Backpack  is made of water-resistant Light Oxford, a Smooth surface that is wear-resisting, anti-wrinkle and Anti-vibration. Also has a durable and soft polyester lining. Multi-functional The main compartment 30 or 90 adjusted by the clasp, more convenient to equip many items; Reflector Design, When Walking or cycling in the dark is more conspicuous by a reflective stripe on the surface. Anti-Theft Backpack a fully hidden pocket in the back of this bag, special design, the Back tightly in touch with your body, it is not easy to be found and opened, this functional digital backpack is super good for travel commemorative, business, school, work, opening ceremony, and more public occasions