Solution 1: Use In the supermarket. Sellers usually use handheld barcode scanner scan the barcode of goods when sale. When need to scan big good like ice box , we can combine with bluetooth barcode adapter so that we could transmit the data to POS terminal through Bluetooth. When do the stock inventory management, used barcode scanner as mobile barcode data collection terminal when it combined with bluetooth barcode adapter and mobile phone. Solution 2: Use In the Express tracking system. When receiving and dispatching the shipment express list, scan the barcode of the express bill track by the scanner combined with Bluetooth barcode adapter. The barcode data will be sent to the mobile phone through Bluetooth and immediately sent to the data center through GPRS. When the shipment express list arrived in the trans centre, scan the barcode of the track by the scanner, The barcode data will be sent to the PC through Bluetooth