A portable Bluetooth speaker with folding function has a variety of playback modes to meet the needs of different users. The built-in selection of dozens of natural original sounds and meditation healing series of music is a good companion for sleep and self-cultivation before going to bed, allowing the listener to be personally present with the music when switched on. The body material is preferably knitted fabric and microfiber leather, natural skin-friendly, a variety of color matching, beautiful and stable, let a person fondle admiringly. Ultra-thin body design, the user in the use of sleep before going to bed, can be placed under the pillow, does not affect the normal sleep.