The document summarizes iCLASS contactless smart card technology and readers from HID Global. iCLASS uses 13.56 MHz contactless cards and readers to provide versatile interoperability and support multiple applications including access control, biometric authentication, cashless payments, and computer security. The readers come in various form factors to read iCLASS cards at ranges of up to 18 inches and support applications like physical access control, logical access, and identification.