IP68 waterproof wireless earbuds with up to 50 hours of playback. - Brand: JBL - Color: Dark Blue - Waterproof Performance: IP68 - Heat Resistance: Up to 45°C - App Compatibility: JBL Headphones - Playback Time: 10 hours on the earbuds + 40 hours with charging case - Maximum Playback Time: Approximately 50 hours Purchased for running due to their waterproof feature and fit. Used a few times, but I'm selling them because I bought a different color. They fit securely and are excellent for sports. Cleaned before listing. Although in good condition, these are used items, so please refrain from purchasing if you are sensitive to this. ■ "Power Hook" function with overwhelmingly soft ear hooks for comfortable fit and improved convenience ■ "Ambient Aware" function for external sound awareness, enabling more comfortable and safe use without the stress of removing them ■ Comfortable calls with the newly installed Voice Aware function and excellent microphone quality ■ Customizable to your liking with the newly supported dedicated app ■ Approximately 50 hours of wireless music playback, the longest in the series ■ "Touch Control" function to reduce troublesome operations ■ IP68 waterproof and dustproof, as well as heat resistance up to 45°C ■ "Dual Connect" function that allows use of a single earbud Thank you for viewing.