1.To Get A Better Sleep: Our white noise machine has built-in 28 exclusive sounds to create different listening environments. Soothe your nerves, let you immerse in a more relaxing environment, and help you fall asleep quickly. 2.Adjustable White Noise Machine: We can set the timing to meet your listening needs of the device. At the same time, there are various kinds of volume levels that can be set, which can well isolate the noise, get into a relaxed state faster.Please note: As we are international seller, our delivery time will take about 10 working days. Our logistics provider and delivery method is: New Zealand Post.