Our Warehouse is in CA and shipping handling time is one business day, generally the package will be delivered within 5-7 days. Description: (1) Low noise and 0 radiation. (2) Large Capacity of water,you could leave it on all night and not worry about refilling. (3)100% natural water-soluble essential oil can be used in this product, giving you a SPA at home. (4)The small particle size of anion that can be easily absorbed by human body, is healthy to physical and psychological treatment. (5) The unit will stop working if there's no water in the tank, the aroma diffuser stops working automatically..