Features: This sound machine suitable for relieve stress, relax your mind and create a relaxing sleep environment. Our sound machine with 7 kinds of light color, to suit your personal-preferences at any time-. You can choose the suitable nightlight to decorate the environment and create the perfect atmosphere for sleep and rest-. Soft lighting creates a comfortable sleeping- atmosphere for babies, children and adults. It is the best- choice for night feedings and diaper changes. It isgood for taking naps-, relaxation, meditation, concentration while studying and working. With the lightweight and compact- design, it is easy to carry anytime-, anywhere, perfect for home, office or travel. Specifications: Material: plastic Voltage: DC5V0-1.0A Power: 1w Battery capacity: 300mAh Charging time-: 1.5hours White noise duration: 18 hours Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xWhite Noise Machine