Hismell 2022 Bluetooth Wireless Earbud Headphones with Charging Case Built-in Mic & in-Ear Deep Bass

Bluetooth earphones make a reverse sound wave with environmental noise. Two sound wave are superimposed to reduce noise. Prevent 90% noise going to ear canal. Water Resistant. Each earbud can play 6 hours. Ability to use all day with charge case. The case is easy to carry in your pocket to store or recharge. Has 3 sizes of silicone caps, Choose the best fit the size of your ear. No matter how shake, and don't fall out. True wireless freedom. You can use one earbud when the other are charging