Stamp lets you charge any mobile device using just heat. Stamp is the first product in this space to be flexible in the heat source used, as well as the first to be completely hands-off during operation.
Put Stamp near a suitable heat source and watch as it charges the on-board batteries to keep your adventures charged up throughout the day. Stamp puts out the same amount of power as a USB port and lets you charge any device with a USB cable.
Check out our development blog at www.stampteg.com