White Noise Machine | Portable Sound Machine for Babies, Kids, Adults | Sleep Soother | 20Soothing Sounds | Long Battery Life | Travel, Registry

1 Natural Sound Key: Play 9 natural sounds, short press to switch between 9 tracks. 2 Light Music Keys: Play 5 light music tracks, short press to switch between 5 tracks. 3 White Noise Keys: Play 5 white noises, short press to switch between 5 tracks. 5 indicator lights: 1. Power on status indicator light, lights up for 30 seconds after turning on; Charging indicator light: The green light flashes during charging and remains on after being fully charged. Short press to set the timer. Short press once, indicator light 2 will light up and automatically turn off after 30 minutes; Short press twice, indicator light 3 will light up and automatically turn off after 60 minutes; Short press three times, indicator light 4 will light up and automatically turn off after 90 minutes. Long press to turn on/off the child lock function. Press and hold for about 3 seconds to unlock the child lock, preventing children from accidentally touching it. Press and hold for 3 seconds again to turn off the child lock function.