From the Ellia Collection. The Ellia collection includes premium diffusers and the highest quality essential oils available, helps you take the ambience of your living and working spaces to new levels. No more being constrained by the need for an electrical outlet — with this beautiful Imagine ultrasonic aroma diffuser, you’re free to place it anywhere in your surroundings. The Ellia Wander Cordless Ultrasonic Aroma Diffuser makes it even easier to enjoy your favorite essential oils from an aesthetically pleasing base. This completely cordless diffuser can be placed anywhere you’d like to enjoy convenient aromatherapy, for up to 4 hours continuous or 8 hours intermittent runtime. Ultrasonic technology delivers a fine mist of your favorite essential oil to enhance your mood, and the soothing humidity alleviates dry air. You find the best things when you Wander.