USB04 series of semi permeable aromatherapy machine is our latest products, is the USB02 aromatherapy machine derivative derived function and use the same USB02 as the light conversion mode (10) is more rich and colorful, 150ml greater volume, spray a greater amount of additional intermittent and continuous spray spray two modes, adding buzz more innovative design tips, semi transparent effect, which is quite different from the traditional market similar products in the transparent, beautiful and unique shape slender round products.