ID Tech Solutions Pvt Ltd. Provides various RFID solutions which includes a wide range of RFID cards. The proximity cards are contactless cards and they have an antenna embedded in the card. However the proximity cards are read only cards and the information on these cards cannot be manipulated. The proximity cards also use radio frequency identification technology. With the growing use of radio frequency based technology the RFID thin proximity cards are used in various fields which includes security, identification, access control, etc.