Invisible earplugs are designed according to the shape of the ear. They have a very mini design style. They are very light and fit the earhook firmly. They are suitable for long-term wearing without causing discomfort to the ears. Very mini invisible earplug body design. If you like to sleep with earplugs but dont like the feeling of foreign objects in your ears when sleeping on your side, then this sleep earplug is best for you. It won't squeeze your ears when sleeping on your side, and the U-shaped rubber skin-friendly ear caps keep the headphones in your ears all night long. These hidden working earbuds are very easy to use. With the built-in microphone, you can easily switch between pausing music, answering calls, rejecting calls, or tracking music with the touch of a finger without having to take out your phone. It's all getting easier Sensorless fit These are the lightest earbuds available, measuring under 1cm/0.4in, and each sleep bud weighs just 0.08 ounces. It feels so light and natural, you'll barely notice it's there. Dual Noise Cancellation Technology Combining superior physical noise reduction with acoustic noise reduction technology, you can enjoy a quiet sleep time with sleep earbuds. Stay away from snoring and baby noise 24 hours Long battery life and fast charging Sleep earbuds last for 24 hours of listening time, and the stylish charging case can extend the use time to 480 hours, which means the charging case can provide power for 7 additional charges of the invisible earbuds . Micro fast charging, charging takes only 10 minutes and listening to music takes only 91 minutes. High-quality sound quality and safety guarantee. This sleep earbuds bring you high-quality audio enjoyment. Whale cavity three-dimensional surround sound effect, immersive music enjoyment. The perfect sleeping companion. If you encounter any problems during use, please feel free to contact us and we will solve it for you within 25 hours. Bluetooth 5.3 and fast connection high quality 5. Bluetooth chipset invisible Bluetooth earbuds provide high-speed and stable connection, stronger signal, faster connection speed, compatible with almost all Bluetooth-enabled devices, and the transmission distance can reach 15 meters. The connection is simple and fast, and you can enter the music world within 2 seconds. Specification: Bluetooth version: 5.3 Transmission distance: about 15M Standby time 480 hours Charging time: 1 hour Play time with charging case: 24 hours Supported systems: All Bluetooth-enabled devices and mobile phones Precautions: 1. Please read the instruction manual carefully before use. 2. If you receive a defective product or have any questions during use, please feel free to contact us. Packing list: 1*Wireless mini earbuds 1*USB cable 1*User manual