Thanks to its ingenious design, the lamp looks like a dinosaur egg, with light bursting from the cracks, as if the light of life is blooming, giving people a dreamy feeling: the little dinosaur inside is exploding from the shell! [Starry Sky + Northern Lights] The projector projection view provides 14 color combinations (composed of four colors: green, red, blue, and white). It not only supports single-color, two-color, and three-color aurora effects, but can also bring the starry sky into the room, giving people a sense of being there. [19 Soothing White Noises] This sleep aid plays high-quality sounds. There are 19 natural soothing sounds (birdsong, light rain, thunder, running water, water droplets, train, frog, etc.). With the timer, you can set it to 1 hour or 2 hours, and then it will turn off automatically. Perfect for adults and children to fall asleep easily. 【Use Remote Control】You can easily turn the green stars and northern lights on or off. With Aurora projectors, you can choose from different color and speed levels. However, you can also choose a mode that allows the colors to change slightly. All combinations of star and aurora modes are available via remote control! Batteries (2 AAA) for remote control are not included. 【Bluetooth Speaker】Bluetooth connection, easy-to-use high-quality Bluetooth speaker. Use it to listen to music and activate rhythm mode to make the lights dance to the music. The galaxy projector has a USB-C power connection.