Enjoy the surf as it meets the sand on the beach, the soothing sounds of a distant thunderstorm, or the steady, constant background of white noise Relax to a babbling brook, the gentle lapping water at the lakeshore, or the sounds of crickets and spring peepers on a country eve The Marsona DS-600A also can be operated with four AA batteries (not included) You can take it wherever you go: hotel room, camping, even in the car The timer can be set to turn the unit off after 60 minutes Specifications: Solid state electronics Volume control Battery operable Quality construction One year limited warranty Made in the USA 6 Base sounds: Lake shore Surf Country eve White sound Thunderstorm Brook Speaker: 4 ohm for acoustic clarity Weight: Approximately 1.5 pounds, including transformer Material: ABS plastic Electrical: Household current converted to 9-12V DC Cord: 6-foot cord with 2.5 x 5.5mm power plug Battery operable (4 AA batteries - not included) Size: 7.5"(L) X 5.125"(W) X 2.75"(H) Color: White