DESIGNED FOR SMALL EARS Invisible earbud body design when you don't want to be disturbed by others or need music while sleeping or exercising. Headset improves the wearing comfort of the design, it fits well in your ears. Ergonomic design. The sleep headphones with three different sizes of silicone ear caps have an in-ear design, combined with a mini and compact appearance that does not fall off easily and is more comfortable. It is suitable for people with different ear sizes. Clear calls. Excellent physical noise cancellation combined with acoustic noise cancellation technology, the microphone of the sleep headphones reduces noise even in noisy environments and makes calls clearer 18 hours. Long Battery Life The sleep headphones last 3 hours. Listen to songs, and the charging case can be used for up to 18 hours. That means the charging case can provide 6 times extra charging power for invisible earbuds. Touch control: simply touch the in-ear Bluetooth headphones wirelessly to play/pause music, answer/end calls, change volume/, song, voice assistant