BCL Ultrasonic Mist Diffuser uses ultrasonic wave to instantly vaporize water and essential oil to produce a continuous fragrance mist. With 80mL of water, it runs up 6 hours with output to fill a small room, reception area, salon station or office. Additional features include automatic shut-off, and ambient white L.E.D. light. Product size: 13.7×11.7x10cm