You must choose an official dealer, an authorized dealer, must have a genuine authorization and warranty from Fozon to buy genuine products. Usually these major dealers usually have their own website, so instead of going directly to the dealer, you should go to the dealer website and inquire about all information about the Fozon product line. This information can be: features, price, quality assurance … After carefully researching the information you can go to the store to check the information you have found.