R12 UHF handheld is a special card reader and barcode scanner that supports one-dimensional code/two-dimensional code/915Mhz UHF tags based on barcode recognition, RFID radio frequency identification technology and Bluetooth communication. Not only the power consumption is low, the standby time can be as long as 1 year, which changes the traditional data line transmission method, and there is no need to load additional power (the handset comes with a lithium battery). Only the receiving end Bluetooth and the handset Bluetooth pairing are successful Upload the epc number of the UHF tag directly to the receiving end of the device via Bluetooth.