With Aroma Essential Oil Diffuser Function Car humidifier Colorful Mini Humidifier Water-soluble essential oils can be added,You can add a few drops of your favorite essential oil to give your room a pleasant scent.(Note: Can Only be added the soluble in water essential oil).It can effectively moisturize dry skin and help you reduce skin peeling.ONE BUTTON CONTROLThe portable car humidifier USB mini humidifier uses one button control, one button controls all functions. All you have to do is press the on /off button every 1 second to control the mist. Press and hold the power button for 3 seconds to activate the color function.(Warm tip: Soak the cotton swab in water for 3-5 minutes for the first use, and then put it in the catheter)TWO SPRAY MODES & AUTO SHUT-OFF - This car humidifier mini humidifier has two mist modes: Continuous and intermittent mode. On continuous mode, it will automatically shut-off after 4 hours. On intermittent mode, it will automatically shut-off after 6 hours. It shut-off when the water level is low. Thus, you don't have to worry about the humidifier being damaged in the absence of water. You can use it at night without worrying about safety.QUIETThis Colorful Desktop Cool Mist humidifier has low noise design, If you place it on the desktop, you do not even feel it.FIT FOR ANY OCCASIONThis Colorful Cool humidifier car humidifier Power Supply compatible with any device USB port which ensures it can be in the car for travel and be used bedroom, lounge room, yoga, spa as well. Moisturize at any time, enjoy the healthy air everywhere.