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EM Microelectronic EM4200

EM Microelectronic EM4200

This Tear Drop Leather Key Fob contains an authentic EM Microelectronic EM4200 chip


  • RFID Leather Key Fobs and NFC Leather Key Fobs are durable, reusable and stylish
  • Available in a variety of shapes, colors and sizes
  • Includes a functional and accessible zinc allow key ring
  • Leather Key Fobs may be made with a wide array of chips and for all RFID and NFC readers
  • Stylish and securely sealed RFID transponder enables the key fob to be used as a personal identification credential for a variety of RFID and NFC applications including:
  • Door Lock Keys
  • Access Control
  • Social Media Activations
  • Gaming
  • Promotions
  • Loyalty Programs
  • Brand Reinforcement
  • General Promotions
  • Cashless Payments
  • Closed Loop Payments
  • Gym Memberships
  • Season Passes
  • Ticketing
  • Souvenirs


  • Manufacturer
    EM Microelectronic
  • Chip
  • Radio Frequency
    125 kHz
  • Protocol
  • Memory
    128 bits read only memory
  • Min Order Qty
    1000 Pieces
  • RFID
  • NFC Enabled
  • NFC Forumicon
  • Material
  • Operating Temperature
    -10 to +50 Celsius
  • Dimensions / Available Shapes
    40mm x 83mm
  • Colors
    Black, Brown
  • Printing Method
    Printing Method: 
  • Printing
    Offset Printing - Double Sided, One Color
  • Other Customizations
    Debossing, Debossing with Color, Serial Number File
  • Lead Time
    4 Weeks