【Cordless Use & Built-in Battery】 The upgraded Galaxy Projector has a built-in 3000mAh battery. Once fully charged, it can last for 5-6 hours. The Galaxy Projector can be placed in any corner of the room. also powered by USB cable and works with a wall charger. With USB port, support connecting with power bank. 【32 Color Effects & 6 Angle Design】Our projector night light not only has 15 color modes, but also has a red spiral nebula, an ocean wave and stars, to create a dreamy and romantic atmosphere in your child’s room. Ocean waves and star galaxy night light projector can be displayed separately or mixed together for your choice. Night Light with Timer】Star projector night light is easy to control remotely. Let the lighting effects be in your hands. The remote control can control music playback, LED background colors, Starry/Galaxy; Adjust the brightness (20%-40%-60%-80%-100%), ocean wave change speed, turn on/off lamp or music freely. With timer function, you can press “sleep mode”