The Meridian Point Mini Portable Diffuser with Essential Oils is a compact and portable aromatherapy device that is perfect for home or travel. This diffuser operates silently and comes with 4 essential oils, including orange, eucalyptus, lavender, and lemongrass. Simply add a few drops of oil to the diffuser, and enjoy the therapeutic benefits of aromatherapy. The diffuser can be powered by 2 "AA" batteries (sold separately) or the included USB cord. Made of durable plastic, this diffuser measures 8 1/4"L x 3"W x 6 1/2"H, making it easy to take with you wherever you go.