Up to 10 hours runtime. 2 Mist settings: constant, interval. USB connection. Ultrasonic cool mist. Runtime up to 10 hours on interval mist setting and up to 5 hours on constant mist setting. With its new sleek and modern design, this portable diffuser is the perfect travel companion and the petite size makes an attractive addition to any home, office or travel bag. No matter where you go, simply plug in to start enjoying an aromatic mist anytime and anywhere! Each essential oil has its own unique aroma, expertly extracted using time-tested processes. By inhaling the aromas of essential oils, aromatherapy taps into the relationship between our sense of smell and emotions. Whether you're looking to breathe in the soothing scent of lavender or the invigorating aroma of eucalyptus and every scent in between, beginning your aromatherapy routine means taking the steps towards bettering your healthy lifestyles. We've made it easier than ever to get started with our Essential Oil Mini Diffuser!