【Immersive HIFI High-Quality Sound】 Pursuing "the richness of the original sound." With a driver designed by the manufacturer, equipped with a 13mm dynamic driver, it achieves immersive sound quality without missing the groove of deep bass. Realizes a wide and rich sound field from a small housing. Pursuing the reproduction of the music as it is. 【Battery Level Display & Long-Time Music Playback】 You can check the remaining charge of the charging case and earphones with the LED display. Note: The earphones are automatically charged when returned, and the LED display flashes during charging. When the earphone body is fully charged, the LED display light automatically turns off. From a fully charged state, the earphone body can continuously make calls or play music for up to approximately 6 hours. The earphone chamber can charge the earphones about 5 times with a full charge, allowing for a total of approximately 36 hours of music playback. 【Ergonomic Design】 Adopting a sports design based on ergonomics, only 3.8g per ear, it provides a comfortable fit and feel in the ear, making it comfortable to use without feeling heavy. 【Touch-Control Easy Operation & Clear Calls】 With touch control, you can easily answer calls, activate Siri, and play music. While playing music, it's easy to control the volume or skip to the next song without looking at the screen. Even if you receive a phone call, you can control it without taking out your smartphone. The S510 wireless earphones are equipped with a special chip, and the call quality is very clear. From commuting to sports, and even remote meetings and online classes, it achieves high-quality two-way communication. 【Automatic Pairing & Memory Function】 The storage part of the charging case is equipped with a magnet, which firmly attracts the earphones when stored, so you don't have to worry about losing or dropping them. Furthermore, when you take the earphones out of the case, they automatically enter pairing mode, allowing for easy Bluetooth connection. Simply putting them in and out of the case turns the power ON/OFF and automatically activates the pairing setting mode with the device. From the second time onwards, the device can be automatically identified without any settings.