Description: Small Size and Lightweight - personal air humidifier's , It suitable for small size space, mini bedroom,living room for babies,kids, or take to mini office, car or travel easily. Improve Air Quality Of Your Living Space - Not only an aromatherapy, this essential oil diffuser can also be used as a humidifier to improve your home's air and atmosphere quality, cover the odd of pets or smoking and protect you family from excessively dry air, microorganisms, allergens, dust, and more! Ultrasonic Quiet Operation & Safe Protection - humidifier Less than 20dB whisper-quiet operation will not disturb your studying, working or sleeping. Ensure safety and enjoy the fresh air. Powered by USB charger - The air humidifier can work just only in the case of power supply,such as USB adapter, The USB interface of computer, laptop, power bank. Size: 69x69x152mm / 2.71x2.71x5.98inch. Specification: Tank Capacity: 300ml Power: 1.5-2W Voltage: 5V Current: 0.4A Package Includes: 1 Piece Humidifier 1 Piece USB Cable 1 Piece Manual Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!