Long Battery Life, Bluetooth 5.3: Mini conduction speaker can work continuously for about 20 hours and fully charged in about 2 hours, providing you with a more continuous and comfortable music experience. pillow speaker with Bluetooth 5.3 version, using a premium chip to ensure stable and clear sound.Improve Sleep: Soft music from the under pillow speaker helps relieve stress and helps to fall asleep faster. Ability to listen to music in private without disturbing others. Tailored to relieve stress and help with deep sleep. It provides great help for adults and babies to fall asleep and get rid of insomnia.Conduction Technology: Mini bluetooth conduction pillow speaker uses the latest conduction technology to vibrate the sound through the pillow to the ear. You can avoid disturbing the family next to you while listening to music.Timing Function: Bluetooth pillow speaker with timing function, see set 30 minutes 60 minutes 90 minutes after the automatic shutdown, to bring you a peaceful night sleep and save power.Dual Modes: The speaker supports two types of sound, respectively, vibration sound bone induction technology sound and air conduction sound of conventional speaker technology. Bone induction technology is suitable for listening to music alone, to avoid disturbing others; conventional speaker technology is suitable for daily use, you can spread the sound to the neighborhood, and others to share music, as ordinary speakers.