... and other fields.Characters & Extending Function:1.Laser barcode reader module 650nm laser, Support barcode types: UPC-A, UPC-E, industrial 2 ... 6.(optional) blue-tooth Combination Applications:Application 1:1.Laser barcode reader module2.GPRS module(built-in-aerial)Application 2: ... 1. Laser barcode reader module2. Read/write Philips Series or RFID module ...