Customer Review 1:
Sooner or later someone would connect smart-looking sunglasses to a world of high quality audio - and it seems in 2020 Bose has nailed it, with Farmertec delivering these sunnies straight to your door!  
I opted for the Wayfarer-style Alto frames which sat snugly and comfortably on my head despite containing the gizmos and miniature speakers that blue-tooth remarkably provide crisp clean sound from your phone or tablet device. 
As someone who spends a lot of time behind the wheel for both business and pleasure, the safety and convenience alone are standouts.  
I have found the Farmertec product handy while exercising and watching live-sport.   
Seeing (and hearing) is believing!
Thanks Farmertec! 
P. Lewis