①. [Star Projector] The star projector LED light is designed as an alien plane, which gives babies/children a wonderful world full of colors, awakens their curiosity in the sky, and provides a pleasant and relaxing bedtime. ②. [21 Color Modes + 360° Dynamic Projection] Using a variety of color combinations, this disc star projector creates 21 dynamic light projections with adjustable rotation speed. You can configure the static projection by slowing it down to the lowest speed. The brightness of the LED light of this product can be adjusted, which is gentle to our eyes. ③. [Bluetooth Speaker and USB Memory] This starry sky LED projector can be connected to our Bluetooth mobile phone or play music from an external USB memory via the USB port. We can adjust the volume or change the song through the remote control. The combination of light and sound will bring a night atmosphere to our family and friends. ④. [Remote Control and Projection Synchronization] The remote control can operate all the functions of the night sky projector and is powered by 2 AAA batteries. The latest sound-activated flashing mode allows you to automatically change color or shake along with the music, which is suitable for parties. ⑤. [Timer Setting and Adjustable Brightness] To better adapt to room decoration and energy saving, this LED starry sky projector can be set to turn off regularly for 1 hour or 2 hours, and the projection brightness can be adjusted to 4 levels - between 10% - 40% - 70% - 100% with the remote control or by pressing.