Starry sky projector lamp: Rotates 360 degrees, with 4 projection films, star moon, underwater world, universe planets, carousel, provides a fantastic moving starry sky, makes for a soothing and romantic light effect; 8 colour modes night light: 4 1W light sources that achieve better projection. With warm white, red, green and blue LEDs, the projector supports 8-colour light mode. Remove the inner films and close the top cover, it is also a small night light. Two power supply: The projector lamp operates 4 AAA batteries or a DC 5V USB cable. It can be connected via computer/notebook computer or USB power supply. The battery is not included. Use the tool to remove the screw, then open the battery compartment cover. Many modes thanks to easy control: Right button is main switch; Middle is colour light (8 modes are randomly set, long press for 3 seconds to close) and the left button is warm light/rotation (rotation - warm light - turn off - turn off the warm light). Wonderful gift: It shines like the stars at night, in any place and at any time creating a romantic atmosphere. A great gift for children, family or friends. Ideal for decorations for wedding, birthday, party, festivals. It can also help parents coax baby to sleep sweet. Baby Soother: Babies or toddlers are easily attracted to colourful things, so focusing on the projection image on the ceiling or walls will help them fall asleep quickly. The night light ensures a good night's sleep, especially if your child is afraid of being in the dark. Convenient to use: Use with 4 AAA batteries (not included) or any USB port or DC5V USB plug adapter (not included). We recommend using a rechargeable portable power supply with the USB cable connected. Best gift: The projector night light makes a wonderful birthday gift