Your keys are always with you when you leave the house. That’s the idea behind NomadKey--it’s shaped like a key and fits easily on your keychain. You’ll never leave it behind, and won’t even notice you’re carrying it.
USB ports are everywhere. You can find them on computers, printers, TVs, stereos, and even airplane seats. As long as you’ve got your NomadKey, you can charge up your device.