Safe anonymous shipping! Free shipping! We are sorry, but we cannot offer a discount. *Product Details* BAL (Ohashi Industry) 3-Way Sine Wave Inverter 400W No. 1787 This product is scheduled to be shipped via courier service. *Regarding Warranty* We provide a full warranty for damage due to shipping accidents, non-delivery of goods, and significant discrepancies from the product description, so please rest assured. *Please note that we do not cover after-opening or after-use troubles, or initial defects.