Designed for Sleep - Very mini and invisible earplug body design, if you like to sleep with earplugs and don't like the feeling of foreign objects in your ears when sleeping on your side, then these sleep earplugs are the best for you. They won't pinch your ears when you sleep on your side, and the U-shaped rubber skin-friendly earcups keep the earphones snug against your ears all night long - these are the lightest earbuds available, weighing only 0.11 ounces each. It feels so light and natural, you'll barely notice it's there. Clear Calls - Combining superior physical noise reduction with acoustic noise reduction technology, the sleep headset's microphone can reduce noise even in noisy environments, making calls clearer. You can enjoy the sleep earbuds for calls in noisy environments, just like face to face 24 hours long battery life and fast charging - the sleep earbuds can last for 4-5 hours of listening to music, and the stylish charging case can extend the use time up to 24 hours, which This means that the charging box can provide 7 additional charges for the invisible earbuds. TYPE C fast charging, charging takes only 10 minutes, listening takes only 94 minutes. Premium sound quality and safety guarantee - these 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 28 hours.