The Macaron diffuser features a modern shape that's the perfect addition to any room with a small size that makes it ideal for travel. The unit's ultrasonic vibrations create a cold mist that can scent a space for up to 26 hours. The diffuser also features seven soft LED lights that can rotate, be fixed on one color or set to colorless. 4 1/2" x 6 1/4" Uses water and essential oils (not included) Recommended for rooms up to 450 sq. ft. 13-hour continuous run time 26-hour intermittent run time Automatic shut-off when empty Plastic Imported