Compact and portable, operates anywhere with 2AA batteries or with the USB cord included to plug in for endless diffusion. Silent fan broadcasts the fragrance, complete with 3 replaceable micro-absorbing pads. Take the spa with you! The Aromafier diffuser from SpaRoom Essentials is portable and offers that spa-like experience even while on the go. It works with two AA batteries, USB cord or AC adapter. Just add a few drops of your favorite essential oil and enjoy the fragrant experience. Because it uses absorbent pads, it does not need water or heat and is safe for travel.