drop-shaped design | chip type: 125 kHz EM4305 | with keychain | writable | green
drop-shaped design | chip type: 125 kHz EM4305 | with keychain | writable | yellow
drop-shaped design | chip type: 13.56 MHz MIFARE S50 | with key ring | only readable | green
drop-shaped design | chip type: 13.56 MHz MIFARE S50 | with key ring | only readable | grey
drop-shaped design | chip type: 13.56 MHz MIFARE S50 | with key ring | only readable | red