*It is expressed in the world standard sound power level LWA. The measurement standard is measured in a test environment that complies with ISO03744. Usage conditions may vary depending on the country you live in, so please research the product carefully before purchasing. Please ask any questions as we will investigate together. Please Note: Import duties, taxes and charges are not included in the item price or shipping charges. Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up -?do not confuse them for additional shipping charges. We do not mark merchandise values below value or mark items as "gifts" - U.