Aromatic radiance on the move Travel Aroma Cube is powered by USB plug that allow you to enjoy aroma whenever you have a USB port nearby. It applies advanced ultrasonic vapor technology. It diffuses the aroma oil into the air without heat, simply breaking the water and oil into fine micro particles and fill out your whole room. This keeps the essence of the aroma oil intact, creating a more natural aromatic experience. Users have 2 different timer settings of 1hour and 2 hours allowing you to choose the period of time to your needs. Comes with a travel pouch allows you to carry around to enjoy the comfort of aroma at home, work or while travelling.