Smart Life App & works with Alexa In wifi mode, you can fully control the star projector through the phone, such as changing colors, setting timer functions and playing music. Just say like "Alexa, turn on Music Star Light", free your hands and feet and enjoy a comfortable good night. App: Brightness Range: 1%-100% Remote: 10% 40% 70% 100%. Provide 16 million colors, 3 LED speed (slow - often fast) is adjustable. You can adjust the brightness, color and speed of the light according to different scenes and atmosphere, create a magic space for you.Stopwatch function and music synchronization Star Sky ProjectorInternal timing function, 1 /2/ 4 hours of automatic shut-off timer, it is very convenient for children's room. Don't worry about forgetting the lights of that starry sky At the same time, the projector can play music according to the rhythm of the music and change the lighting effect, very suitable for the atmosphere of the activation party or parent-child interaction.Bluetooth and USB Dual Play ModeBuilt-in Bluetooth Music Speaker and USB slot, you can connect via Bluetooth or insert a USB flash drive into the port, play your favorite songs when the lights are on, and enjoy relaxing music and dreamy atmosphere. The latest sound-activated flickering mode allows the galaxy projector to change color according to the beat of the music, what a lovely time it would be.Room decoration and ideal giftThe galaxy light projector Smart Star night perfectly fits all holiday decorations, room decoration to create a pleasant and relaxing bedtime experience for children. Suitable for Thanksgiving, birthday party, family reunion, etc. A great gift idea for all seasons, family, lover, friends.