Las sandalias Nautica que compré son del número 10 US y me quedó muy bien. I didn’t have any of the issues that some of the other reviewer‘s had. Works great with my Apple iPhone and google pixel. The Bad:-Unresolvable Bluetooth issues-Microphone is at best mid range-No mute button, raising and lowering the boom arm is not as functional as you would imagine. I bought these based on countless internet recommendations saying that for the price, they’re hard to beat. and you can charge them upto 15 times in their case without the need of an external power source! This is exactly what I needed and nothing I didnt. Hubby loved it. Even so, the right earpiece now seals properly in my ear, and the sound is sublime. This car radio fits perfectly into my 2003 Subaru Forester and replaced a barely working radio.