With NOW^® Solutions new Portable USB Ultrasonic Oil Diffuser you can enjoy the benefits of aromatherapy wherever life takes you. This compact little unit can be plugged into any USB port, making it ideal for the home or office, and is perfectly sized to fit in almost any vehicle beverage holder for portability you just won’t find with most other diffusers. With a run time of six hours per fill and a one year warranty, NOW Solutions Portable USB Diffuser is a great complement to any on-the-go lifestyle.