PULSE Jump Rope Generates Energy As You Play

Here is a cool way to generate energy for your electronic devices: the PULSE system. This is a jump rope that harnesses kinetic energy as you play. It will convert it into electrical energy that can be used to power small devices. The adapter that comes with each PULSE can turn minutes of play into hours of power and even charge your cell phone. These are custom designed using 3D printing technology. They cost you $129 at this time.

[source]