【Comfortable & Even for Side Sleepers】Mini Sleep Earbuds have perfectly balanced in the ear thanks to 3-size soft silicone ear tips and ear caps, which are designed to rest on the ear concha, ensuring you get the most comfortable fit, allowing you to sleep comfortably throughout the night; this design ensures not only comfort, but also a stable fit, preventing the earplugs from falling out or slipping off during the night. 【Effective Noise Blocking】These soft earbuds are designed ergonomically and well fit for daily use, forming a gentle seal and blocking effectively the outside noise up to 24dB, These wireless bluetooth earbuds seal well enough in your ears that they are very effective at blocking outside noise. Note: No Active Noise Cancelling (ANC) 【Invisible & No Alert No Flash】Wireless headphones packed with Hidden Headphones makes it easy to go truly wireless, with comfortable and super lightweight features. Without any low battery alert, this earphones are suitable for all sleep positions and undisturbed sleep. Each earbud can be used randomly. After you put on these in-ear earphones, the light stop flashing and is perfect for hiding in your ear at work. 【High Quality Sound】Our sleep earbuds feature advanced audio technology that ensures clear and distortion-free sound, providing a superior listening experience that helps you relax and fall asleep quickly, thereby improving the quality of your sleep. 【All-day Listening】These small sleep buds keep you entertained for up to 30 hours.With 6 hours onboard battery life, plus up to 22 hours with the charging case.Feel free to carry these compact headphones out, such as travel, sports, workout, yoga, and office daily use(If you play at more than 80% volume, or listen to music that is more intense, it will cause more battery drain. The use time is generally within 4-6 hours)