NebAir is an easy to use Oil nebulizing System for Aromatherapy. Changing Oils is a breeze, no more pouring, no more mess, just screw your bottle directly on the Atomizer, then with a flick of the wrist the wonderful aroma of your favorite Essential oil is dispensed into your room. NebAir is a State of the art diffuser designed to easily bring spa therapeutic aromatherapy to your home, office, hotel room, or anywhere that you wish.NebAir Smart System is designed with 48 mode settings. You can tell NebAir how you'd like your essential oil diffused by adjusting the settings to your preference! This item comes with 1- Nebair Nebulizing Unit, 1- nebulizing Nozzel adaptor, 2- 10ml Oil Bottles to blend & Mix Oils, 1- Usb power cable, 1- Ac Adaptor. Essential Oils Not Included.