This "Mini Scentifier" personal diffuser is easy to take anywhere with you. It's compact and is powered by a USB, making it a perfect addition to your personal space cispersing your favorite essential oil within a range of about 100 square feet (10 x 10). Add essential oil to the microfiber pad, plug into any USB, and turn on to create a soothing environment. The top light changes color. Perfect for your workspace or next to your bed.