Get the rest that you need with the help of the HoMedics SS-2000 Sound Machine. When you are fatigued . it is designed to give you the calm you need. This relaxing white noisemachine has multiple features . giving you a customized experience each time. Turn it on to create a comforting environment with six different nature-based noises. Choose from Thunderstorm . Rain . Ocean . Brook and more. This Sound Machine Spa portable is battery or AC adapter operated . so you have versatility in your use. The sound machine is specially constructed with a built-in timer that automatically turns off when you want it to. The slim . lightweight construction makes it simple to take with you on the go. The Silver and White color fits will complement any bedroom or nursery.