1.Portable desktop humidifier & Silent operation This mini car humidifier is small and light which is easy to carry. With sound-free design, it only creates sound less than 35 dB which is very quiet, giving you a perfect sleep. It is suitable in bedrooms, offices, living rooms, cars and travelling.2.2 Mist Mode & Auto Shut-Off The mini USB humidifier has two modes. first mode, you need to press once, will continue to spray for 6 hours. The second mode, you need to press again, it will spray (stop for 3 seconds) for 10 hours. With intelligent anti-dry function, if there is insufficient water after continuously running for 6 hours, it will stop automatically, so you wont be disturbed while sleeping.3.Quiet & Cool Racing Lantern This USB portable humidifier only creates sound less than 35 dB which is very quiet. Soft night light making it suit for sleeping. Press the button for 2 seconds, the light will automatically change to cool racing lantern. Press again for 2 seconds, the light will turn out.4.Care for Your Health:Personal care humidifier can hold up to 350ml of water, 30~40ml/h spray volume, increase the humidity of the air and also help prevent dry and chapped skin in dry seasons, create a comfortable living environment, lift your spirits and relieve stress