Mini and Small These Sleep ear buds are mini and lightweight, weighing only 2.3g. The shape of the invisible earbud is designed to fit the ear. It is comfortable to wear without strain. When wearing mini earbuds, they are almost unnoticeable and can be worn during work or leisure. You can wear it all day without pressure.Designed for SleepSleep earbuds are combined with skin-soft silicone earbuds and earplugs, the true wireless design provides a comfortable experience throughout the night, they are perfect sleep earbuds for side-sleepers. Even if you turn over or sleep on your side, they cause no strain on your ears if you wear them for a long time.Long-lasting BatteryUp to 4 hours of music playback per charge and up to 24 hours with the charging case. 1-HOUR quick charge provides up to 24 hours of music.ENC Call Noise CancellationDual-microphone digital wind noise reduction, shielding most of the environmental noise in daily life to highlight the effect of the human voice,bringing a clearer and smoother call effect.CompatibilityCompatible with iOS and Android, supports access to Siri and Google Assistant. brings you a truly wireless experience when using your iOS or Android smartphone, PC, tablet, or laptop.