For the third tine I cannot review an item that while you said you have fulfilled the order 19 days ago.....that I have YET to receive in the mail.
Sound is mostly high end, sounds like a pair of cheap and broken in-ear headset.
Took exactly 1 month to receive the glasses from the day I ordered. I expected a wait, they were upfront about a 2 week lead time on the product page. The glasses are amazing and sound great and look great too. The letdown came when I ordered 2 extra sets of lens since I knew it was going to be a little bit before receiving the glasses and ordering everything at once would be quicker and save both the company and me shipping cost. They included one set of lens but did not include the second. After notifying them of the error I was told they would look into it and then nothing for a few days. I emailed again and requested the lens or a refund since I hadn't heard from them in almost a week. Finally a week after the first email about the missing item I did receive a refund for the missing item. Start to finish 5 weeks for sunglasses. If they we not so nice I would have lost my cool way before that point.
I was using my GB 30 glasses until they cracked. I had just used them for a week and the frame where the lens go suddenly cracked. The idea of the Mutrics glasses is neat, but their material quality is meh. Don't get me wrong, I took care of my glasses and they paired and sounded great. But they aren't worth the 150 USD preorder if they are going to break.