It's everything you want in sunglasses. I've used it now for mountain biking and loving it. First, it looks great and feels great. Then, I love how I can change the shade on demand as needed. Then, there's being able to answer calls while continue riding. The build quality is great. Charging is a snap, literally.

New technology so it's bound to be a little buggy. Every now and then the tint will change itself and not let you change it back for like 30 seconds then it works again. Overall very cool and have been my daily sunnies since I got them

The electrochromic feature is awesome. They look great too. Big fan of the cyberpunk appearance.

I recently got my hands on a pair of innovative sunglasses that have transformed my workout experience. These aren't just any ordinary shades; they come equipped with a Bluetooth speaker and an interchangeable tin feature that sets them apart from the rest. ## Bluetooth Speaker: Your Workout Playlist On-the-Go One of the standout features of these sunglasses is the built-in Bluetooth speaker. Imagine being able to listen to your favorite workout playlist without the hassle of tangled wires or bulky headphones. The sound quality is impressive, providing clear audio that keeps you motivated during those intense training sessions. Whether you’re hitting the gym, going for a run, or cycling outdoors, having music right at your ears enhances the experience. It truly feels like having a personal DJ encouraging you to push through those last few reps! ## Interchangeable Tin: Style Your Shades Another unique aspect of these sunglasses is the ability to change the tin at will. This means you can easily customize the look of your shades to match your outfit or mood. The process is simple—just swap out the tin, and you’re ready to go. This feature not only adds a fun element of personalization but also makes it easier to transition from workout mode to casual outings without needing to change your entire look. ## Conclusion Overall, these sunglasses are a fantastic addition to any fitness enthusiast's gear. The combination of a Bluetooth speaker for music and the versatility of interchangeable tins makes them a unique and functional accessory. If you're looking to elevate your workout experience while staying stylish, these sunglasses are definitely worth considering!