【Power Up】 Enjoy up to 6 hours of music playback. The earbuds themselves offer up to 4 hours on a full charge, and with the charging case, you can extend that to an additional 6 hours. 【Ergonomic Design】 Designed with sports in mind, based on ergonomic principles. Each earbud weighs only 3.8g, perfectly fitting the shape of your ear for a comfortable and secure fit. You won't feel any weight even when wearing them, and you can use them comfortably without worrying about them falling out while you move. 【IPX7 Waterproof】 IPX7 waterproof rating prevents water damage. These waterproof earbuds can withstand washing, sweat, splashes, and sudden rain. They are the perfect sports earbuds for active scenes like sports and exercise. *Note: The charging case is not waterproof. 【Automatic Pairing & Memory Function】 The charging case has a magnetic design that securely holds the earbuds in place, preventing loss or dropping. Furthermore, when you take the earbuds out of the case, they automatically enter pairing mode, allowing for easy Bluetooth connection. Simply taking the earbuds in and out of the charging case turns them on/off, and automatically activates the pairing mode with your device. No setup is required for subsequent use; the device will be automatically recognized. 【Cutting-Edge Bluetooth 5.3+EDR】 Features high-quality audio transmission within a 10-meter range. No sound skipping or interruptions. CVC 8.0 noise-canceling technology reduces background noise, allowing you to focus on listening. *This is an imported product. There may be minor imperfections such as scratches or blemishes.