Will the PowerDuo Travel work with any USB device?

Maybe. The PowerDuo Travel was designed to work specifically with the iPod. However, since the iPod was designed to charge from a standard USB port, the PowerDuo Travel should work with any device that uses standard USB for charging. The PowerBlock has a female USB port, so you'll still need your own cable.

Unfortunately we cannot guarantee compatibility with all devices as there are too many devices on the market to test them all. The best way to find out if it works with your device is to pick one up and try it out.