The Professor tries out Blackfire's offering into the portable power station market. Will this 546 watt hour solar generator Goal Zero clone with bluetooth speaker hold up to the competition?

I've tested over 40 Bluetooth speakers, and after pitting these similarly-priced Bang & Olufsen and Bose models against one another, there's only one I'd actually buy.

We've scoured the deals and these are the ones that are genuinely worth shopping ...