Reddit mentions of White Noise Machine, AVANTEK Sound Machine for Sleeping, 20 Non-Looping Soothing Sounds with High Quality Speaker & Memory Function, 30 Levels of Volume and 7 Timer Settings

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20 SOOTHING SOUNDS: Non-looping sound recordings of high quality; includes 6 types of white noise, 6 fan sounds and 8 nature sounds (ocean waves, rain, wind, stream, birds, campfire, cricket and clock); great sleep machine for babies, children and adultsEXCELLENT SOUND QUALITY: The speaker in this machine is customized and debugged by a market-leading speaker manufacturer; with just the touch of a button you’ll be enjoying a crystal clear, rich, and natural sound from this white noise machinePERFECT FOR BABY SLEEPING: This white noise machine with a wide volume range of 30 levels allows you to find the comfort level for your baby and family, which helps to create a perfect sleeping environment and effectively protect your baby’s hearingTIMER & MEMORY FUNCTIONS: Supports continuous play and auto-off timer between 1-7 hours so you can sleep more soundly without the worry to manually turn off the machine; automatically restores your previous volume, sound and timerCOMPACT & PORTABLE: Small and lightweight; easily fits into your handbag, backpack or suitcase, making it perfect for home, office and travel use; both a power adapter and a USB cable included