Anker 14W Solar Charger. Model: 71ANSCPS
Charges your speaker and Iphone while your are shredding. Here the solar charger is shown rolled out.
Charges your iPhone while on the way to a new spot, price ca: 59 dollars.
Charging while you are skating. We have winner.
More on: https://www.anker.com/products/variant/PowerPort-Solar-2-Ports/A2421011