Portable Mini HumidifierThis mini humidifier is small in size, light in weight, easy to carry, ultra quiet and powered by USB cable. It is suitable for travel, bedroom, office, baby room humidifying your home to prevent air drying. Cool MIST HUMIDIFIER120ml water tank humidifier, 40ml/h spray volume, 2 working modes: Intermittent mist (2 seconds on/2 seconds off) and continuous mist. Full water with USB use can keep hydrated 3-6 hours in continuous mode. Safe and Automatic ShutdownWhen the water is used, the small humidifier will automatically shut down, protect the device, continue to use after restart. And the seal of the humidifier is strong, no longer afraid of pouring liquid to leak in an accident. Quiet Operation/USB PowerWith noiseless design, it only creates noise less than 35dB which is very quiet, giving you a perfect sleep. You can even use it with children and pets at home. With the USB port, you can charge it with computers and mobile phones. [Quiet Operation/USB Power] With noiseless design, it only creates noise less than 35dB which is very quiet, giving you a perfect sleep. You can even use it with children and pets at home. With the USB port, you can charge it with computers and mobile phones.