As of now, we haven't figured out a way to conduct any quality checks. However, we trust our customers to list genuine, fully functioning products and honestly mention any problems that might be present. The buyer will be the one to confirm if the product matches the description and that there aren't any unknown issues that might be discovered. To avoid any confusion we shall intermediate any conversation between the buyer and seller. Other than that, Headphone Zone tries its best to protect its buyers by getting as much information about the seller and his gear to achieve transparency in the transaction. Once the buyer confirms if the product matches the description and that there aren't any unknown issues that might be discovered, store credit for the sale amount is provided to the seller.