This is called the Powerstick b’cos it gives you power. It is use to charge your gadgets on the go when you gadget goes battery low. With this, you can free yourself from wall sockets, converters & chargers, especially when travel overseas. The Powerstick itself is charged via USB port, just plug the Powerstick into a USB port to charge. The fuel gauge turns on when charging begins. It supports most iPods, cell phones, & others that charge via mini-USB. Just plug the Powerstick into your device’s charger port and press the start button & your device has instant power. The Powerstick is available for $70 USD.