When your phone is nearly dead and there's no easy way to charge, it's stressful. This power bank helps you leave that anxiety behind. It's built to last and is a natural addition to your everyday carry or travel pack, with ridges inspired by reinforced steel containers, and a sleek profile that's easy to access and use no matter where your next adventure takes you. The 7800mAh power bank has dual USB ports, and arrives pre-charged and ready to use with a reflective lanyard to locate quickly in the dark. And when your device is done charging, the powerband turns off automatically to save energy and preserve battery life.