Baby Sleep Soothers Sound Machine White Noise Record Voice Sensor with 9 Soothing Sound 3-gear Timer Setting For Light Sleeper           Features:      [9 SOOTHING NATURAL SOUND W/ ADJUSTABLE VOLUME] : 9 Kinds of sounds: Including White Noise, Ocean, Thunder, Soothing music, Wind, Brook, Summer night ,     Rain and Relax music(Bird). All the sounds streamed from speaker of this machine are crisp, realistic, natural and smoothing, no jarring noises. Select the sound that you prefer. Volume up and down via the volume gear button.      [SMOOTHING & RELAXING SOUND]The white noise instrument equipped with 9 kinds of natural sound, which are crystal clear and fair-sounding, creating a more relaxing sleeping environment so that you can sleep easier and fall asleep deeper.      White noise among them, can mask noise while not interfere with the user, making the original noise seem to be weaker, subjectively weakening the sound, thus appeasing excessively irritated cranial nerves, soothing emotions, relieving stress, and promoting sleep.      [WHITE NOISE NATUROPATHY]: This "White Noise Sleep Helper" promotes sleep by creating the sleeping atmosphere through naturopathy(sound therapy), helps improve sleep      quality and efficiency of work and study. Simple and harmless solution to those who have difficulty falling asleep, mild insomnia sufferers, and those noise-sensitive users.      [VERSATILE USE]: Great for promoting sleep and making sleep easier, also great for baby nurseries, snoring noise shielding, street noise shielding, pet baby pacifying in case of sudden noise from fireworks, lightning or thunder, etc. Can be used in home, office,      college dorms, apartments, hotel rooms, office, kids room, business trip, etc. Use it anywhere, any situation.         Features:      1. 9 Kinds of sounds: Including White Noise, Ocean, Thunder, Soothing music, Wind, Brook, Summer night , Rain and Relax music(Bird).      2. Timing Function: Set the playing time by "Timer" button for 15minutes, 30minutes or 60 minutes. The unit will automatically shuts down after the specified time has elapsed.     3. Volume Adjustment: Rotate the volume switch left and right to adjust the volume to your desired level.      4. USB charging or AA batteries(AA batteries not included)        Highlights:      1.Create sleeping atmosphere for easily entering into sleep and fall into deep sleep.      2.Great for baby pacifying      3.Help you focus and improve efficiency in study and work     4.Shield snoring noise from your spouse or roommates, no need to underbear the pain by wearing anti-noise earplugs.      5.Block the audio and protect privacy, works great while call answering      6.For travellers that have time difference, help create a familiar sleeping environment     7.Block sudden noise (such as fireworks, lightning, thunder), reducing pet anxiety and scare      8.Up to 9 soothing natural sound, can cater to different people in different occasions.     9.The internal structure of the speaker is designed according to the acoustic principle, so that the effect of white noise can reach to ideal state.