Smoothing Nature Sounds-Recommended by DoctorsThe portable sound machine with crystal clear quality sound speaker, Digitally recorded soothing white noise and natural sounds allow you to have a relaxed atmosphere and enhanced sleep.Not Just for Sleep Upgraded white noise battery operated machine, use in any situation you want. Using this white noise machine for office privacy or study area can help you focus on the things important and get things done efficiently.Perfect for baby nurseries, day care centers, college dorms, apartments, hotel rooms , office spaces and home.Portable & Convenient DesignUSB rechargeable (cable included) or 4AA batteries operated (not included).Choose what you wantEasy Operation & Timer Control9 relaxation natural sounds, simply press button to choose desired sound.Smart timer design, you can set 15, 30, 60 min automatic shut-off optional timer to avoid wasting energy when you are asleep.ProduktbeschreibungColor Name:whiteProduct Specification :Why choose our white noise sleeping machine1. 9 Preset Natural Sounds: This sound machine with 9 kinds of sounds, including White Noise, Ocean, Thunder, Soothing music, Wind, Brook, Summer night , Rain and Bird music. All the sounds played by this machine are crisp, natural, realistic, and without any scratching noises.2. Block off Unwanted Noises: With this sound relaxation machine, you will surely get a better and more relaxing night's sleep.The white noise mask unwanted noise and give you a comfortable environment to sleep .3. Convenient & Portable: Compact, basic and lightweight design, easy to put into your bag and power it conveniently by USB charging or AA batteries. So you can enjoy a smoothing sleep anywhere .4. Focusing Enhancement: Using this white noise machine for office privacy or study area can help you focus on the things important and get things done efficiently. It's a simple solution to improve privacy and make sure that your conversations wont distract others.5. 2 Charging Options: Simply connect the included USB cable to your device or take it on the go with 4 AA batteries (batteries are not included)Specifications:Color : WhitePower source: USB or AA batteryInput power: 5V USB chargeBattery Power :4*AA battery (not included)Timer:15 /30 /60 minutes for optionSounds: 9 soundsProduct size : 1.2 inch * 5 inch roundWeight : 8.2 ozPackage included:Portable White Noise Sound Machine x 1USB Cable x 1User Manual x 1