BPA Free USB Cable Included Key Product Features Extremely Quiet Easy to Clean Just Add Tap Water and Essential Oils Cool Steam No Heat Involved / No Risk of Burns Runs Up To 4 Hours Automatically Shuts Off BPA-Free Great for Home or Office 1 Year Warranty Run Life 5000+ Hours Plugs Into Your Laptop Rotating LED Lights Specifications Model7523 ColorWhite Capacity70 ml / 2.37 fl oz Run Timeup to 4 hours FeaturesContinuous / On / Off, 3 changing LED Lights Red, Blue, Green. Coverage200 square feet Rated Power5 W ± 0.5 W NOW Solutions Ultrasonic USB Oil diffuser unites aromatherapy with modern scientific innovation to create a diffuser that plugs into your laptop with a USB cable. This mobile diffuser is BPA-free and diffuses essential oils for up0 to 4 hours. It utilizes high-frequency ultrasonic electrical vibrations to create an ultra-fine mist. This diffusion method doesn't utilize heat, which maintains essential oil integrity and holistic properties every time you use it. Just add 70 ml (2.37 fl. oz.) of water and 5 drops of your favorite essential oils and enjoy. When it's out of water it automatically shuts off. Essential Oil Info NOW Solutions' essential oils are genuine reflections of the botanicals of which they're born. This wide array of essential oils is comprised of pure and natural extracts. The science of producing essential oils has evolved significantly over the years. These days producing essential oil that's highly concentrated, identity verified, and beneficial is a craft that involves a delicate balance of art and science that cannot be compromised. Fresh botanicals bursting with vitality, strict attention to detail, and meticulous extraction methods are what separate the elite essential oils from the run-of-the-mill natural and synthetic oils you'll find on the market today. At NOW we take the quality and safety of our essential oils very seriously, and we take great pride in ensuring that every oil we produce is brought to you in a manner that's scientifically and environmentally responsible.