Compact and Versatile With its sleek and compact design, this diffuser easily fits into any USB port, making it perfect for your work, laptop, or even a power bank. Simply add a few drops of your favorite essential oil to the diffuser's reservoir, and it will start emitting a gentle and refreshing mist. The Aroma-Bud USB Diffuser offers a continuous mist along with an optional soft LED light feature, adding a calming ambiance to your space. Whether you need a quick pick-me-up during a busy day or a relaxing moment during travel, the Aroma-Bud USB Diffuser is your ideal companion for on-the-go aromatherapy. The Aroma-Bud is a compact diffuser, which operates via a USB cord at all times. 5 in 1 multi-functions USB Power cord ONLY 100ml Water Capacity Operates up to 5hrs Product size 11.5 cm x 9.7 cm Uses Ultrasonic Cool Mist technology Auto switch off on low water level Can operate with no light, if preferred Mist dispersion covers 15-20 sq/m Colour Changing LED light at the base, will rotate through a series of relaxing colours, can be set on any colour, or completely turned off.