[High-fidelity sound quality and stable connection] The sleeping Bluetooth earphones use Bluetooth 5.3 technology to provide clear sound quality and stable connection, ensuring high-quality sound during music playback and calls, suitable for music lovers and call demanders.[True Wireless Design] The mini in-ear design and TWS (True Wireless) technology allow you to enjoy a cable-free and free experience, suitable for daily use, sleep or exercise, providing ultimate convenience.[Long-lasting battery life] The earphones are equipped with a charging box, providing up to several hours of battery life, ensuring sufficient power during exercise, commuting or travel, avoiding the trouble of frequent charging.[Waterproof and sweat-proof design] The earphones are waterproof and designed for sports and active outdoor lifestyles. They can resist sweat and water drops and maintain reliable performance in various environments.[Portable charging box] The included charging box not only extends battery life, but also facilitates charging at any time, ensuring continuous use and lasting connection when going out or traveling.