usb port dynamo radio flashlight hand crank mobile phone charger led l

video

& input capabilities. Solar ● ●. Generator ().

Cell – 37 results like Eton Rover , Ambient WR-111

Solar Powered . AM/FM Weather Band . Signaling Strobe . Emergency Siren. Compass. for cell .

have a tiny little generator built in.

https://en.wikipedia.org/wiki/USB

https://en.wikipedia.org/wiki/USB_flash_drive

https://en.wikipedia.org/wiki/USB_3.0

USB Bike Generator: 5 Steps (with Pictures)