RFID includes a number of uses like tracking animals such as cow, cat and others. It is a tag in which instructions and information can be stored. The range of RFID system is 90 feet. Line-of-sight reading is not required by RFID.
Scanning can be possible at a higher distance compared to other technologies like bar code reader. If you want to get more information, it is suggested to look for the RFID Chip Timing Winston-Salem North Carolina on the Internet. This is helpful to gather plethora of information about RFID technologies.