AUTO-OFF: 23 min automatic shutoff. Long life LEDs that don’t heat up. Adjustable settings for brightness and movement create a fully controllable experience for various environments. GENTLE SOUND LIGHT: Projects underwater light effects along with a soft Melody or Ocean Waves. COMFORTING: Our products are designed to help calm and soothe children to fall asleep better and make bedtime more pleasant and comforting. TRANQUIL TURTLE: Let ocean waves lull children off to sleep with Tranquil Turtle.