1.[ sleep machine]little boy and little gril care artifact soothing the 's emotions and assistingthe to sleep.The born has just left the mother's wombUnfamiliar voices can make babies feel uneasy. White noise has similarities with their familiar sounds. Mom and Dad are not next to the for a short time, Q3 can also care effectivelyAutomatic noise detection function10 seconds continuous noise Auto play music 2.[10 Non-Looping Sounds]The white noise sound machine is including White Noise,Clock,Cricket,Sea waves,Streams,Heartbeat,Birds,Lullaby 1,Lullaby 2,Lullaby 3. 3.[3 Timers and Memory Function ] The machine can play continuously or automatically shut down after 15, 30, 60 minutes. More importantly, the machine will remember the sound selection, light color, brightness and volume, so you don't have to worry about pressing buttons all the time! 4.[Auto& Smart White Noise Machine] Automatic noise detection button without power on, press and hold for 2 seconds to enterthe noise detectionThe white indicator light is always on. lf continuous noise is detected for 10 seconds, Just turn on the music by yourself, stop automatically after 15minutes of playing, and enter the detection mode again, looping all the time.Long press for2 seconds to close the detection mode, and thedetection distanceis 6-10 meters. 5.[Pocket White Noise Machine ]The mini White Noise Machine is measuring just 3.66x3.15x1.12 inches. Fits easily in your pocket and can be carried anywhere for travel. 6.[Sleep Sound Machines ]The sound machine for sleep ease the mind and fall asleep quickly. Promote adult sleep, relieve fatigue. Ensure y sleep and development for little boy and little gril and adolescents. To ensure that the elderly sleep, physical fitness. When a single frequency noise and white noise appear at the same timeThe sound of a single frequency is mixed into the whitenoise without being noticed by the human ear. Naturally, it will not be disturbed.