Adafruit PN532 NFC/RFID Controller Shield for Arduino + Extras Price For: Each Manufacturer: Adafruit Industries Product Category: RFID Transponder Tools RoHS: Product: RFID Shield For Use With: Arduino Tool Is For Evaluation Of: PN532 Brand: Adafruit Description/Function: NFC/RFID controller shield Dimensions: 117.7 mm x 53.3 mm x 1.1 mm Frequency: 13.56 MHz Interface Type: I2C/SPI Packaging: Bulk