Product Features: Our Sleep Earbuds are designed to provide you with a peaceful night's sleep. With the latest Bluetooth 5.3 processing chip, these earbuds provide 3D surround sound and a stable connection with no delay. Made of proprietary soft silicone earbuds and ear caps, they ensure comfortable wear throughout the night. Their specially designed stabilizers hold the earplugs firmly in a soft, sealed position, effectively blocking out external noises up to 24 dB, such as snoring, city noise or noisy neighbors. With a built-in sound leakage filter, you can hear even when you plug your ears. Enjoy up to 4-6 hours of playback on a single charge, and with 24 hours of total playback time including the charging case, you can immerse yourself in your favorite music for four hours straight. These compact earbuds are perfect for travel, exercise, yoga or daily office use. With IPX6 professional depth waterproof, they support swimming, surfing, snorkeling and other sports. You will enjoy clear, precise, dynamic sound and balanced audio underwater. However, it cannot be used continuously underwater for more than 6 hours. How to use: To use our Sleep Earbuds, simply pair them with your smartphone via Bluetooth. Once paired, insert the earplugs into your ears and adjust the stabilizers to hold them firmly in place. The earplugs are designed to be comfortable to wear throughout the night, even when lying on your side. With a built-in sound leakage filter, you can hear even when you plug your ears. Enjoy up to 4-6 hours of playback on a single charge, and with 24 hours of total playback time including the charging case, you can immerse yourself in your favorite music for four hours straight. These compact earbuds are perfect for travel, exercise, yoga or daily office use. With IPX6 professional depth waterproof, they support swimming, surfing, snorkeling and other sports. However, it cannot be used continuously underwater for more than 6 hours. Gentle Reminder: Please note that our Sleep Earbuds are designed to improve your sleep by blocking out external noises up to 24 dB, such as snoring, city noise or noisy neighbors. However, they are not intended to be used as hearing protection devices. If you have any concerns about your hearing, please consult a healthcare professional. Additionally, while our earbuds are waterproof, they cannot be used continuously underwater for more than 6 hours.