Features: Built-in Bluetooth speaker and USB slot option: Pairing with the phone takes a few seconds. You can hear good subwoofer sound, suitable for lullabies, ambient sounds or classical music playback. Watch the projection lights once again while listening to your favorite music, relaxing and practicing, fitness and meditation, reducing work fatigue.Adjustable :Multi lighting effects help children stimulate curiosities, imagination and creativity to explore the mysteries of the stars.Enjoy the time: Project the moon in your bedroom every night and play your favorite music. It can create a warm and quiet sleep environment to help you and your child fall asleep quickly and smoothly.Multiple modes of operation: Bluetooth remote control is very convenient and does not require complicated operation. You can control the brightness, freely turn the lights on/off, change the lighting mode and music songs, and easily set the atmosphere.Holiday must-have: This Bluetooth stars projector is perfect for family gatherings/children's birthday parties/karaoke nights/wedding events, etc. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Size:170*107mmSmart model: LED: RGBW 4-monochrome six two-color, dynamic-stars, music rhythms, Bluetooth playback, automatic identification card reader, body control, remote control, graffiti-APP control, voice control Include:1*Star-Sky Projection Light