If a performance malfunction occurs within 7 days from the dates of sale of the product,comsumers can choose to return,exchange,or repair services with the purchase certificate;
If a performance malfunction occurs within 15 days from the dates of sale of the product,comsumers can choose to exchange,or repair services with the purchase certificate;
If a performance malfunction occurs during the product’s shelf life,comsumers can enjoy repair services with valid purchase vouchers