Generally, ordinary NFC tags do not work near metal. These anti-metal NFC tags (also called metal tags) are specially made, using absorbing materials, so that NFC tags can work normally on metal surfaces. For example, it can be attached to the surface of a metal notebook computer case and a metal packaging box.
| Material | Microwave absorbing material+PVC, PET,   Paper |
|---|---|
| Size | dia 25/30/35 or Customizable |
| Optional chip | Ntag213,Ntag215,Ntag216,Mifare 1k,etc. |
| Memory | Determined by the chip |
| Frequency | 13.56MHz |
| Protocol | ISO 14443A/15693 |
| Colour | customizable |
| Reading distance | 0-5m |
| Working Temperature | -25°C to 65°C |
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