<ul><li>*Provides ten fan sounds and ten ambient noise variations, including white noise, pink noise and brown noise</li><li>*Safe, solid-state design is powered by AC or USB and dynamically creates unique, non-repeating sounds with no moving parts,travel sound machine is great for home, office or travel</li><li>*Precise volume control allows you to set the perfect level for your unique environment. 1dB increment control for 10x quieter ?10x louder than fan machines</li><li>*Also ideal for creating a disturbance-free work area, or just reducing the distracting effect of outside noises for a more relaxing environment, day or night</li><li>*If you have any questions, please contact us, we will solve it for you as soon as possible!</li></ul> Sleep machine *It is ideal for relaxation, study, speech privacy, or any situation where you'd like more control of your audio environment. It's also your personal white noise and fan sound machine to ensure a better night's sleep and peaceful rest. Product name: Colorful light and music sleep aid Input voltage: DC5V. Charging current: 1A Material: ABS+PLA+silicone+electronic components Use power: 1W Product size: 91X91X135MM Battery capacity: 2000mAh Product net weight: 230g Use time: 20 hours Style/color: white Thank you for working with us. We sell products in good faith,If you have any questions, please contact us in time,We will solve it for you within 24 hours.

SMSOM White Noise Machine, Sleep Sound Speaker with Night Light, 10 Soothing & Natural Sounds, Very Suitable for Adults Kids at Home Office Travel (White)