The Knit Ultrasonic Aroma Diffuser helps you find balance in a stressful world. The detailed ceramic cover adds a stylish touch to any room. The Knit Diffuser runs up to 8-hours continuously or up to 16-hours intermittently. Customize your experience with the 60, 90, 120-minute timer and 7 LED lights. The 7 LED lights can rotate or be fixed to one color. To use, add water and the essential oil of your choice, turn it on, and let the cool mist relax and recharge you.