答：
1, the air time is short, the goods arrive at the airport soon, the consignee does not need the bank to transfer the documents, you can handle the import and delivery procedures at the airport with your own identity of the consignee。
2. After the goods are mentioned in the hand, the consignee can find reasons to refuse to pay the documents transferred by the bank, and the risk of payment recovery is great。
Summary: This mode of air transport will only be used when the domestic shipper fully trusts the foreign consignee, and it should be used with caution if it is only a general cooperative relationship at home and abroad。