Produce a stress-free atmosphere anywhere with the HoMedics Sound Day spa Portable Audio Equipment. Six various digitally recorded natural sounds mask distracting background noises permitting far better relaxation as well as rest. An auto-off timer lets you run the Sound Health spa device for 15, 30 or 60 minutes at a time, while the lightweight, small dimension makes it excellent for traveling. Operate the Audio Health spa device with a power cord adaptor or 4 AA batteries (batteries are not included). Packaging might vary, yet product contains the following noises: sea, summer season evening, rainfall, thunder, creek and also white sound.