1Convenient: Portable spray essential oil diffuser for outdoor travel, giving you a comfortable space, making the air fresh through the fragrance emitted by the ultrasound aromatherapy diffuser. 2Soft Mist: Aromatherapy humidification, mist is as delicate as smoke, help meditation, sleep, and enjoy comfortable and slow time. Add essential oil, turn it on and diffuse the delicate atomized water into the air. 3Silent: Completely quiet without producing any bothering noises, it will auto shut off while water off, to ensure safety and a longer working life. 47 Changeable Colorful Light: Soft and comfortable, click the default colorful gradual change for the first time, and click the second time to fix the current color. 5Safe: A large number of active oxygen negative ions are produced, which react with harmful gases in the air to effectively remove the hazards of formaldehyde, benzene, ammonia, TVOC, etc. Its cold mist technology does not damage any components of essential oils.