These flower diffusers can turn your personal space into a spa experience. Use them in your car, office or anywhere with a USB power outlet. Shaped like a flower, it adds just the right out of functional cuteness your personal space. Simply remove the center cap and add a few drops of your favorite essential oil, place the cap back on and plug into any USB power source. As the oil heats up it gently releases your fragrance and refreshes the air. Use it in your car, with your computer and even works with USB battery power banks.