1. 20 Types Soothing Sounds - Preset 20 genuine licensed sleep music, taken originally from the natural, including White Noise, rains, storms, campfire, ocean, clock ticking and more, Perfect for relaxation and meditation, helps faster and more natural sleep.2.RGB or Warm Night Light -Warm Night Light and RGB Mood Light. Warm night light helps you to sleep tight and the RGB Mood light can make the machine decorates your room.3. Auto-Off Timer and Memory Function Built-in timer can be set for 30 or 60 or 90 minutes, the track and volume can be also remembered when you reboot the machine.4. Convenient Travel Design - Dual power supply modes: USB Power Supply (cable included) or 18650 rechargeable battery power suppky(not included). Also equipped with earphone slot when you do not want to disturb others.5. Satisfaction Guaranteed - 2 years Warranty and 24 x 7 customer service, get it without any worry!Produktbeschreibung Color Name:BlackOur white noise machine equipped with 20 types of sounds, including White noise, pink noise, brown noise, fan sound, wind sound, campfire, ocean, light rain, spring water, heartbeat, clock ticking, night forest, bird song, summer night,, aircraft cabin, train, relax and lullaby. All the sounds played by this machine are crisp, natural, realistic And high definition. Blocks unwanted noises:Having this machine you will surely get a better and more relaxing sleep night. The sound machine will mask unwanted noise away.Focusing enhancement: Using this machine in your office or study area can help you focus on your work and get things done efficiently. It is also a simple solution to improve privacy and make sure that your conversations wont be overhear by others. Best gift for anyone in your family! Dual Power Supply Mode:USB Power Supply (Cable included)18650 Rechargeable Battery Power Supply (Battery not included)Product Specification :Color: Black Power source: USB or 18650 rechargeable lithium batteryInput Power: 3.7V USB charge Battery Power: 18650 rechargeable lithium battery (not included)Timer: 30 or 60 or 90 minute Weight: 10.5 ozPackage included:White Noise Machine x 1USB Cable x 1User Manual x 118650 Battery Not Included