OhO Bluetooth Sunglasses - Open Ear Smart Glasses with Polarized UV400 Lenses for Music & Calls | Hands-Free Audio for Running, Driving & Outdoor Activities

I've been using these sunglasses since November 2019, mainly for listening to music while running or during mountain biking. To be up front, I received the sunglasses at a discount in exchange for reviewing them...it just took a while for me to actually do the review.My first pair arrived with a scratch on a lens and I have to say that the support was really good. I got a response back within a couple hours and they sent a new pair out without any hassle and I had them the next day. My first impressions were that they looked pretty big and bulky but when wearing them they actually are very comfortable. I found the optics quite good and the rubberized matte finish really keeps them in place on your face even on the roughest of trails. Given the fact that the style is wraparound, they give great peripheral vision because of the larger lenses which really comes in handy for visibility on tight trails. The audio is pretty good given what they are but the left speaker stopped working less than a month after the warranty ran out...of course. That didn't stop me from using them for another 2 years until they finally developed a spot right in the middle of the right lens where it looks like the coating wore off. I'm still not sure what happened as I only noticed it when I was cleaning the lenses, it looks likes something rubbed there but maybe the coating finally reached its planned obsolesence and cleaning caused it :).At the time I purchased them I don't believe there were any other lenses available so there were times I wished for some options for different weather conditions but it seems like there are other lenses available now although I'm not sure if they can be bought separately from the sunglasses. I would have given them a 5 out 5 if I hadn't had the issue with the left speaker but overall in terms of being sunglasses they've been the best ones I've ever had for biking even with just the single lens color I had.