I own a Bose soundbar, Bose ear buds and a Bose 500 speaker. I buy Bose products for the sound quality. Saw the Bose Alto glasses today. Really want some. They'd be perfect for me. Only trouble is, no prescription lens option. It's no good having a pair of glasses to listen to music on my phone if I can't read the screen. If there were a prescription option, id have bought them on the spot. The salesman said you are looking for a supplier but I could have my optician make some up. Glad I didn't but them to have lenses fitted later. No good at all if it invalidated the warranty!