I'm one of those people who need to have a solid background noise to sleep. Usually a box fan is my go to, but sometimes I don't want that air circulation. This sound machine is the perfect solution to this problem! This portable machine is small, fits perfect in your luggage, purse or small bag. It has many different sounds to choose from. Air conditioner to rainforest, you can find your relaxing sound and drift into sleep with ease. Volume control, timer settings and easy USB hook up make this sound machine the perfect solution to white noise.