DESIGNED FOR SLEEPING - Very mini and invisible earbuds body design, if you like to sleep with earbuds and don"t like the foreign body sensation in your ears when sleeping on your side, then these sleep earplugs are the best for you. Sleep on your side without squeezing your ears, and the U-shaped rubber skin-friendly ear caps make the earphones fit your ears all night SENSE-FREE TO WEAR - These are the lightest earbuds, weighing only 0.11 oz per sleep earbud. It feels so light and natural, you hardly notice its presence CLEAR CALLS - Excellent physical noise cancelling combined with acoustic noise cancelling technology, The sleep headphones" microphone reduces noise even in noisy environments, making calls clearer. You can enjoy sleeping earbuds to talk in noisy environments, just like face-to-face 24H LONG BATTERY LIFE & FAST CHARGING - The sleep earbuds last for 4-5 hours of listening to songs, and the stylish charging case can extend the usage time to 24 hours, which means the charging case can provide 7 times for extra charging power for invisible earbuds. TYPE C fast charging, it only takes 10 minutes to charge and 94 minutes to listen to songs PREMIUM SOUND QUALITY & SAFETY GUARANTEE - This sleeping earbus bring you high-quality audio enjoyment. Whale cavity stereo surround sound, immersive music enjoyment. The perfect sleep companion. If you encounter any problem in use, please feel free to contact us, we will solve it for you within 28 hours.