When the payer scans the receipt code to handle the two-dimensional code collection handled by the bank, as long as the payee pays attention to the official account of the bank WeChat that handles the two-dimensional code, every time he receives a sum of money, there will be a payment notice on the payee's WeChat, but there is no sound prompt. Only when the broadcaster equipped with the bank is connected, the broadcaster will make a sound when receiving each payment.