FLYMEI Portable USB Aromatherapy Essential Oil Car Diffuser with 7 Color Changing LED Lights, Travel Aroma Diffuser Air Freshener Air Purifier for Vehicle, Office, Home Bedroom, Baby Room, Hotel Unique USB Fan Operation: Use small fan to spread the fragrance of aroma essential oil, keeps the original effect of essential oils, make the oil volatilizing more effectively and healthy. Also can add mosquito repellent oils help to repel mosquitoes. Lift Your Mood. Aromatherapy is known to have a powerful effect on mood and feelings. The scent and beautiful mood light can reduce stress and tiredness while driving. Also great for traveling, home, yoga, office, spa, bedroom, baby room, hospital and tent. USB Charger Power and Battery (2 AAA batteries, not included) Supply make the usage much more widespread and convenient. USB cable can connect to power bank / battery charger / car charger / wall charger / laptop. Portable & Mini Size: 3.5X3.5X2.5 inches; Light Weight: 4.7oz. Small but useful. The colorful LED lights can be also used as a Night Light. Whisper-Quiet can help you to sleep more soundly. No Need to Add Water - Comparing to other diffusers, this small diffuser no need water. Just drop some essential oil on the pads, then the scent will spread out. No Water. No Heat. No Hassle.