Sleep BetterIf you like to wear earplugs to sleep, these invisible mini sleep bluetooth earphones are perfect for you. Wearing the sleep wireless earplugs in the ear canal will not cause any irritation, enjoy a full night of comfortable sleep.Lightweight and StableThese micro wireless invisible sleep earplugs are small and lightweight, weighing only 0.1 ounces. The shape of the invisible earplugs is designed to fit the ears. The small earplugs are comfortable to wear and will not feel tight. When wearing the mini earplugs, the small earplugs are almost unnoticeable and can be worn at work or leisure. You can wear the sleep earplugs all day without pressure.25 hours long play timeThe small earplugs can listen for 4-6 hours at a time after being fully charged, and the battery life with the charging box is 25 hours, which can meet the needs of all-day listening.Bluetooth 5.3 and Clear CallsAdopting the latest Bluetooth 5.3 technology, it ensures faster connection and more stable signal transmission. Excellent physical noise reduction combined with acoustic noise reduction technology, the microphone of the sleep earplugs can also reduce noise in noisy environments, making calls clearer.High-quality sound qualityThese sleep earplugs bring you stereo HIFI sound enjoyment. Whale cavity stereo surround sound, immersive music enjoyment. Perfect sleeping companion.