Powerful Bass Performance: The enhanced 10mm dynamic drivers deliver high-fidelity sound that is clearer than CD quality and provides richer bass. Easier Connection: Open the lid of the charging case, and the earbuds automatically connect to your paired Bluetooth devices. Bluetooth 5.2 establishes a stable connection between your device and the wireless earbuds, ensuring uninterrupted sound even in busy environments. Lightweight and Comfortable: The lightweight earbuds weigh only 4g and feel virtually weightless in your ears thanks to the ergonomic design. 28 Hours of Playtime: The earbuds provide up to 7 hours of Hi-Fi stereo sound on a single charge. The compact charging case, which can be quickly recharged via USB-C, offers an additional 21 hours. Suitable for All Conditions: IPX5 water resistance to withstand sweat during intense workouts and all weather conditions.