RAZER ANZU - SMART GLASSES

Hello, I would like to order the "RAZER ANZU - SMART GLASSES" but I have a big hesitation for the size of those. Unlike other products, there is no size guide :( Also, do you know if the music can be heard by the people next to us? This is something that worries me. I'm just taking the opportunity to ask a question that is a bit off topic but not essential for the answer. Will the straws be available soon in France, they have been out of stock for quite some time. Was it a temporary exclusivity? That's a lot of questions, sorry, but I'd like to order my basket soon (to take advantage of the promotions haha) Thanks in advance to the one who will help me ^^