The K-Tor Power Box reminds me of the G-76 handcrank generators we had when I was in the Army. The story goes that when the XO on an SFOD-A was a Lieutenant, it was his job to crank the generator to power the team’s radios. Once the XO position was converted to a 180A Warrant Officer spot, the tradition mysteriously ended.
Size Folded: 12 in by 5.5 in by 3.5 in, weight 4 lbs 11 oz, power output 120 volts DC 20 watts. It has a standard three-print plug making it compatible with most portable electronics chargers like cell phones, tablets, digital cameras, etc.
They also offer a 10W 120V DC @2Hz generator which is smaller in size.