RFID Arduino Kit. Arduino RFID board + Header Pins. Includes Card & Tag Ideal for Arduino & Raspberry Pi projects. Can be used as a security tag to unlock mobile phones instead of using a pass code. Phone requires NFC function. Package contains Board, Header Strip, Card & Tag.. New & Sealed. UK seller - Free 2nd class P&P. Orders received before 3pm are dispatched same day. Upgrade to 1st class postage for 50p. Please feel free to ask any questions.