[Unique design]: essence oil diffuser 300ml metal essential oil diffuser is a perfect complement to modern homes, offices, gyms, spas, studios or cars. [Multi function design]: mini cold fog humidifier, night lighting. Moisturize skin, moisturize air, enhance immunity, relieve pressure and improve sleep. With 7 soothing LED lights, you can recycle 7 colors or freeze on a fixed color. The lamp can be turned on at any time as night lighting. Great gift for car, travel, family and friends. [Silent ultrasonic technology]: The metal oil diffuser uses advanced ultrasonic technology to keep quiet when sleeping or working, with no annoying noise and safety. [Water free automatic cut-off design]: Our oil unloader will stop working when water comes out to avoid electrical hazard and ensure safety [Quality assurance]: Our aromatherapy diffuser has passed the safety and durability tests