The Ultrasonic Aroma Diffuser uses advanced ultrasonic technology to produce an aromatic scent for up to 180 minutes. It includes multiple run options (60, 120, and 180 minutes) and an auto shut off feature when the device runs out of water. The diffuser has a lightwood flame design and is 17cm high, 23cm long and 8.2cm wide. Escape into a relaxing atmosphere with this stylish and easy-to-use ultrasonic diffuser.