This could be the best invention ever. We got next day delivery because my son could not wait. We also got the battery pack to charge the backpack. My sons a teenager so he comes home everyday with a dead phone. Not with this backpack. He fit all of his stuff in there with room to spare. The headphone jack, the phone charger and the locking zippers work perfectly. We could not be happier with this backpack. It's worth every penny. I would recommend this to anyone with teenagers, college kids and to all my nursing friends.