Conduction Technology: Discover the innovative small Bluetooth conduction pillow speaker that uses cutting-edge conduction technology to deliver sound through your pillow directly to your ear. This unique feature allows you to enjoy your favorite tunes without disturbing those around you, making it perfect for private listening. Improve Sleep: Transform your sleep experience with the soothing sounds from our under-pillow speaker. Designed to alleviate stress and promote faster sleep, this device is ideal for both adults and babies struggling with insomnia. Enjoy calming music tailored to support deep relaxation and help you drift off effortlessly. Long Battery Life, Bluetooth 5.3: Enjoy up to 20 hours of continuous music playback on a single charge. The speaker fully charges in just 3 hours, ensuring a seamless and comfortable listening experience. Equipped with Bluetooth 5.3 and a premium chip, it guarantees stable and clear sound quality for all your audio needs. Timing Function: Customize your listening experience with the built-in timing function. Set the speaker to automatically shut off after 30, 60, or 90 minutes, ensuring a peaceful night's sleep while conserving battery life. This feature is perfect for those who like to fall asleep to music without worrying about turning off the device. MP3 and Bluetooth Mode: Enjoy versatile listening options with support for both MP3 and Bluetooth modes. Use a memory card (up to 32GB, not included) to play your favorite tracks in MP3 mode, or connect via Bluetooth to stream music directly from your smartphone. Experience the flexibility of choosing how you listen to your music. Dual Modes: Our speaker offers two distinct sound modes: bone conduction technology for personal listening and air conduction for sharing music with others. Bone conduction is perfect for solitary enjoyment without disturbing others, while the conventional speaker technology allows you to spread sound to your surroundings, making it ideal for communal listening.