As someone who has used a white noise machine for decades, I have to say that this is the best one by far! My girls have also used noise machines since they were born, and the agree and are begging me for this one.. the ones we currently have don't have nearly as many sound options, and don't sound as realistic. SO many options! I have several white noise machines and some of the ocean sounds just sound annoying to me, this one is super realistic. Great size! I can travel with this, and  easily plus it in with the USB cord. I can't say enough good things about this, get this if you can't sleep without a noise machine, you will not be disappointed!