What do you mean your eardrums need a break? Samsung-owned JBL touts solar-powered wireless headphones you don't need to charge
https://www.theregister.co.uk/2019/12/17/samsungowned_jbl_touts_solar_powered_headphones_you_dont_need_to_charge/
It's hard, isn't it — plugging in kit? You've got to grab the item in question, find a charger, and then give it a bit of USB-C. Wouldn't it be simpler if your gadgets just magically charged themselves, using the abundant energy provided by the Sun's rays?
Well, that's the basic premise behind the JBL REFLECT Eternal. Announced yesterday, it includes a strip of photovoltaic cells across the headband. These, it says, can provide 68 hours of playtime from just 1.5 hours of sunlight.