The device in white is designed to create a calming atmosphere with its natural sound features. Ideal for relaxation, it helps mask background noises, promoting a peaceful environment. Its sleek design makes it a perfect addition to any space. CUSTOMIZED SOUND EXPERIENCE: With two-speed options for adjustable tone and volume, making it simple to create a personalized sound environment, excellently masking background noise and allowing for better sleep, office privacy, effective soothing for kids and babies, and calming for sound-sensitive dogs. • UNBEATABLE QUALITY & GUARANTEE: Sleeping is believing. For over 50 years, Yogasleep by Marpac has been the gold standard in white noise machines - read the reviews and you'll learn why.