Portable White Noise Generator: This white noise generator offers 27 sounds, including 7 white noises, 7 fan sounds, 10 natural sound effects, and 3 lullabies. These soothing sounds help create a relaxing and pleasant atmosphere, improving your baby's sleep quality. With adjustable volume, this unit is suitable for both quiet and noisy environments. Three-Mode Night Light: This white noise generator for babies offers three warm light modes: low, high, and a breathing light. The warm light helps your baby relax quickly, while the breathing light mode helps them fall asleep. The bright night light makes nighttime feeding and diaper changes convenient. Combined with soothing music, it can gradually calm your baby. Eight Colors: This cordless white noise generator offers eight light colors. The constantly changing colors and soothing music can help a crying baby focus. A safety switch on the back prevents your child from accidentally increasing the volume. Timer and Memory Function: This white noise generator for babies is equipped with a timer that can be set to turn off after 30, 60, 90, and 120 minutes. After the timer turns off, the unit continues to run until the battery is depleted. It also has memory functions for music and volume, automatically playing the music and volume settings from the last shutdown when turned on again. Please note: the color indicator lights do not have a memory function.