In the product packaging box or attached to the air conditioning product randomly. According to the inquiry of Gree Air-Conditioning official website, the warranty card of Gree Air-Conditioning will be affixed to the product packaging box or randomly affixed to the air-conditioning product when purchasing the air-conditioner. Therefore, the warranty card of Gree air conditioner is in the product packaging box or attached to the air conditioner product randomly. Warranty card is the guarantee of product quality and the "identity card" of the product. The warranty card will indicate the air conditioner model, purchase time, warranty period, warranty point and telephone number, as well as the manufacturer's signature or seal. At the same time, the warranty card is the basic certificate of maintenance, and the maintenance needs to issue the warranty card and invoice at the same time to enjoy the warranty service.