Features 1. Aromatherapy essential oil can be added, humidified and atomized/circulated to disperse the fragrance. A few drops of essential oil can be dropped inside, bringing a fragrant aroma and relaxing the body and mind. 2. Usage: Open the cover of the aromatherapy machine, add water no more than the lamp beads, and then drop in the aromatherapy essential oil. Then, plug in the power cord at the back and press the power button to use. 3. Tiny bright light spreads throughout the room, soft and not dazzling, with a realistic flame shape and outstanding creative visual appeal. 4. Packaging list: packaging box, salt stone box, aromatherapy machine, instruction manual, data cable. Specification Voltage: Input AC110V-240V Ultrasonic frequency: 2.4MHZ Water tank capacity: 250ML Atmosphere light color: seven colors and multiple colors Material: ABS+PP Color: Black Size: 20 x 15 x 10 cm Weight: 765 g Package Include: 1x Aromatherapy machine Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.