I've had this thing for a while and haven't been particularly pleased with it. It turns out that I didn't have a clue.
This thing wanders around with me. I take wifi around with me. Or I think I do. Also, the cord plugs in using the same cord that my phone and kindle use when in the car! I'd seen the ads on tv with people sitting on park benches using their electronic stuff, but I didn't realize I could, too. It doesn't hold a charge very long, but plugging it into the car or at home is just fine!