RFID tags are classified into 4 types according to the radio wave type used, and used in combination with these characteristics. (1) The RFID tag that first came into use uses a frequency at a long waveband of 125 to 135 kHz. This tag type has an effective distance of 30cm, and is resistant to rain, etc., but it has a slow information communications speed, thus it cannot communicate large amounts of information. It has automobile anti-crime immobilizer and other security applications, and is also embedded to ski resort lift tickets, dishes at revolving sushi restaurants and in tableware at buffet dining halls and used for fee payment. (2) The short waveband 13.56 MHz is the most widely used today. This wavelength resists water, dust and other environments, there is no need to worry about orienting the antenna to receive radio waves and it has a fast communications speed. However, its effective distance is only 10 to 20cm, thus it is used by holding the card over the reader. It is used for IC card tickets for public transportation, employee and student ID and other ID cards, for security cards, game arcade, recreation facility and other cards, and for goods management tags. (3) The micro 2.45 GHz waveband uses the same frequency band as microwave ovens and wireless LAN (802.11b/g). The effective range is around 1m, it can be aimed directly at locations and has a very fast communications speed. However, is it not suitable for cards people carry because it absorbs moisture. It is currently used for product logistics management, etc. (4) The ban on the use of UHF 953 MHz band was lifted according to amendments to the Radio Law 2005 autumn, bringing with it much future promise. It has an effective range of around 4m, and has directivity and a fast communications speed, thus making it a leading frequency band in the logistics field in the future. However, as it is easily affected by moisture, metal and other environments, systems must be configured according to the installation environment. The RFID market scale is expected to reach 40% for short waveband (13.56 MHz), 40% for UHF (950 MHz), and 20% for the micro waveband (2.45 MHz) and long waveband (135 kHz) combined.