Grab-and-Go Aromatic Experience! The ScentPod fan diffuser by GreenAir gives travel time a new meaning when you have the power to diffuse essential oils on the road. This small, pod-shaped diffuser fits snuggly in a car, backpack, suitcase or in the palm of your hand. Powered by a USB cord (included) or 2 AA batteries (not included). It requires no water. Simply apply essential oils to the scent pad and begin experiencing the healing benefits. BPA free. Two additional scent pads included. Measures 4 ¼” x 3 ¼” x 2 ½”.