Actually, very good. Really for the price they have, at sound quality level not bad, they isolate well from all outside sound, and are not of horrifying quality like many other imitations, although obviously compared to brands like JBL or things like that, it's quite far away, but they're very well sincerely. As for the housing, also very correct, the magnet is not the strongest but keeps the helmets protected, its function fulfills it. And it also supports original AirPods cases (at least the ones I have). Communication with the store has also been very correct and fast. Highly recommended!
Both headphones work perfectly. The sound is good and clear, they have built-in microphone, connect to any mobile phone via bluetooth. Comfortable for hands-free and do housework. I liked them very much, good value and price. The only percance is that they were held by Chile Post Office during a trial period due to lithium battery, no additional fees. Thanks for the product.