From the Manufacturer:
GuruNanda TAJ™ Diffuser is an easy-to-use, high quality 120 ml ceramic oil diffuser that utilizes ultrasonic waves to diffuse essential oils for up to 8 hours. Try GuruNanda’s Taj Ultrasonic Essential Oil Diffuser which uses vibrational technology to dissipate pure essences of trees, flowers, herbs, and seeds. As several drops of essential oils dissipate in the misty air above, your heart can open to the possibility. Use tap water to fill the water reservoir just below the water mark. Slip in several drops of your favorite GuruNanda® Essential Oil or oil blend and choose from different modes (or settings) to customize your space and aerate up to 100 feet away. Colorful LED lights, a safety timer, and auto shut-off features make this Taj more than just another pretty face. Essential Oil included.