Based on the principle of induction, the gadget consists of a Li-Ion battery and a set of copper coils/magnets. If you put the unit into the pocket or rucksack, six hours of motion will provide your battery with a charge sufficient for 30-60 minutes of talking. The gadget doubtlessly will be in great demand. It will become an indispensable companion of trip lovers, let alone undeveloped, energy-short areas. According to the manufacturer, the gadget will be launched in early 2009 at a price from $25 to $40.

The appearance of such devices shows a pronounced tendency towards developing self-contained power supply technologies. It is not improbable that sooner or later we’ll see devices that need no AC power for recharging.