Invisible earbuds are designed according to the shape of the ear, very miniature design, very light, fit securely in the ear hook, suitable for long-term wear, will not cause ear discomfort. Very miniature and invisible earbuds, if you like to sleep with earbuds and don't like the feeling of a foreign object in your ears when sleeping on your side, then these sleep earbuds are the best for you. Sleep on your side without squeezing your ears, and the U-shaped rubber band-friendly earplugs keep the headphones in your ears all night. These hidden headphones for work are very easy to use. With a built-in microphone, you can easily switch between pausing music, answering calls, rejecting calls, or tracking music with a touch of a finger without taking out your phone. Everything becomes easier and simpler. FEEL-FREE TO WEAR These are the lightest headphones, size within 1cm/0.4in and weighing only 0.08oz per sleep earbud. It feels so light and natural, you barely notice they are there. DUAL NOISE REDUCTION TECHNOLOGY Excellent physical noise reduction combined with acoustic noise reduction technology, you can enjoy a quiet sleep time with sleep earbuds. Stay away from snoring and baby noise. 24H LONG BATTERY LIFE & FAST CHARGING The sleep earbuds last 24 hours for listening to music, and the stylish charging case can extend the use time to 480 hours, which means the charging case can provide 7 times extra charging power for invisible headphones. Micro fast charging, it only takes 10 minutes to charge and 91 minutes to listen to music. PREMIUM SOUND QUALITY & SAFETY GUARANTEE These sleep earbuds provide you with a high-quality audio experience. Whale hole stereo surround sound, immersive music experience. The perfect sleep companion. If you encounter any problem during use, please do not hesitate to contact us, we will solve it for you within 25 hours. Bluetooth 5.3 and fast connection High-quality 5. Bluetooth chipset invisible Bluetooth headphones provide a fast and stable connection, stronger signal, faster connection speed, compatible with almost all Bluetooth-enabled devices, up to 15 meters away. Simple and fast connection, 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 Support system: all devices and mobile phones that support Bluetooth. Notes: 1. Please read the user manual carefully before use. 2. If you receive a defective product or have any questions during use, please do not hesitate to contact us. Packing list: 1 * Wireless Mini Earbuds 1 * USB Cable 1 * User Manual