1. Star projector with built-in Bluetooth - Transform your room into a musical starry sky! Who says you can only enjoy the starry sky outdoors? With this exquisite star projector, you can bring the entire universe into your bedroom! 2. It features a stylish diamond-shaped design. During the day, hanging it on the bedside table makes for an excellent decoration. At night, when projected onto the ceiling and walls, it creates a magnificent starry sky scene. 3. In addition to the cool lighting effects, this projector also has built-in Bluetooth, allowing you to listen to your favorite music simultaneously. The lighting effects can be synchronized with your favorite songs, offering a fully immersive experience. 4. Even better? It also has a built - in timer, enabling you to fall asleep peacefully, accompanied by your own exclusive starry sky, without a care in the world. Isn't it cool? 5. The star projector can create starry sky and galaxy effects, connect and play music via the built - in Bluetooth. 6. Materials: Plastic, electronics. 7. Battery: Built - in. 8. USB: Yes. 9. Timer function: 1, 3, or 5 hours. 10. Included: Star projector and remote control. 11. It has multiple functions and lighting colors, and can synchronize the lights with the rhythm of the music. The timer function allows you to relax without worry.