Purest Naturals Essential Oil Diffuser - Ultrasonic Humidifier - Air purifier with color-changing LED lights. Measures 4" high and 5.5" wide for your desk or table. Fill with water to the line and add a few drops of your favorite essential oil (not included). Plug in and choose your color, let them cycle through a rotation or just turn the light off. Press the mist button once to diffuse for 3 minutes and pause for 1 minute, press twice for continuous diffusing or 3 times to stop. auto shut-off when the water level is low and red indicator light comes on. Very quiet. Used a few times. Great condition in original box. see all pics if you have ANY questions about quality, measurements, or pics, plz ask before buying items cross posted & could sell elsewhere before you know it bundle up to 5 pounds per order from my palace I ship from FL same day or next view my profile to follow me for new uploads thank you for your support