3D surround sound - Put it under the pillow, as if you are there, realistic 3D stereo sound quality, presenting you with an extraordinary listening experience. Powerful 8-hour battery life - 400mAh rechargeable lithium polymer battery, fast charging, long battery life. Bluetooth 5.0 mode - Adopt high-quality Bluetooth chip, equipped with high-performance chip, faster and more stable, low latency and low power consumption, clearer sound. Three-stage timed shutdown - Automatic timed shutdown in three sections of 30/60/120 minutes, easy to set, sleep peacefully. Do not disturb the pillow - Vibration playback, exclusive music, watch short videos, listen to music, will not disturb the pillow.<br><br>Bone conduction Bluetooth speaker under the pillow White noise sleep aid sound bar with LED display Timed shutdown TF card music player. 6 kinds of stress-relieving sleep sounds - 6 series of natural sounds, let you say goodbye to negative emotions, different sound scenes make you feel calm and fall asleep peacefully. Colour:As Shown Material:Plastic<br><br>Package Contents: 1 * Bluetooth speaker<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.