Brand new virgin carbon PCF7936-AA transponders for programming Philips Crypto 2 keys, also called HITAG2. Can work with all machines supporting ID46 (TMPro2, Tango, AVDI, EFFI, Zed-Bull, Megacopy, Cyclone, Miraclone, etc). It is not for duplicating - it is only for programming operations by diagnostic device or by EEPROM.