3 in 1 star projector and bluetooth speaker and night light. There are 2 power modes. Powered by a USB cable, it will stay on all night. Or powered by built-in 1800mAh battery, it will only support 2 hours. Our star projectors use LED lighting to display a. The star projector has 3 built-in auto-off timer options: 0.5 hours, 1 hour, 1.5 hours and 4 hours without operation to shut down automatically (Note: When using the controller, please make sure 'it points to the infrared sensor) Built-in Bluetooth 5.0 speaker and 20 colors - Realistically projecting a dynamic starry sky onto the ceiling or wall, multiple colors can be combined at fantastic speed to create a relaxed atmosphere. You can choose which mode to display according to your mood or environment. Remote Control and Voice Control - With remote control and touch buttons, dual option and more convenient to use. The latest sound-activated flicker method lets you change the color to match the beat of the music or clap your hands for a disco effect. Adjustable Brightness: Timer option is more energy efficient energy and you can also project all night long. Low light - medium light - high light adapts perfectly to the desired atmosphere. After-sales service - For birthdays, family parties, KTV, dance centers, clubs, bars, children's parties, dance floors. Can be used as an ideal gift for your friends, children, colleagues, family, etc.