Features: Two Working Modes & Light Modes Cool Air Humidifier - Press the button for the first time and continuous mist; Press the button a second time to switch to intermittent mist(3 seconds on/2 seconds off). Long press the button for the first time to turn on the LED night light; Press the button a second time to switch the LED night light to the breathing light. Great night light in bedroom. Ultrasonic Quite Operation Mini Humidifie r - Less than 30 dB quiet atmosphere can create a quieter sleeping environment. Humidify your living space to prevent dry, stuffy air and flu/cold germs infecting your loved ones. Prevent dry and chapped skin in dry winter months. Waterless Auto-Off -This humidifier will automatically shut off when water runs out. No worry about damaging the device itself or causing danger to users. An ideal way to add moist, comfortable air to small bedrooms, hotel rooms, baby humidifiers for bedroom, tabletops and even workplace cubicles humidifier for bedroom. Large Capacity & Powered by USB - Tank capacity is 500ml, up to 10-16 hours working time. The humidifiers can be powered by USB cable. No AC Adapter in box. The USB cable is included, interface of computer, laptop, power bank. Specification: Name: Snow Mountain Humidifier Material: ABS/PP/PC Model: GXZ-J623 Voltage:DC5V Size: 95*95*129mm Package included: Humidifier*1 User manual *1 Box*1