Do some cardio, work on your quickness, and charge a pair of AA batteries. Multi-tasking at its finest.
The rope was designed by Kyung Guk Lee, and it is able to generate power and charge batteries. Several minutes of jumping and the LED light handle will let you know you have a fully charged pair of AA batteries. Seeing how most people are incredibly lazy and wont work out, this will probably only appeal to the fitness minded, still a cool product nonetheless. Via wholly’s blog.
battery chargers that are made in china are a bit under rated so i don’t use them anymore…