## Bolt Card technology

| Document | Description |
| --- | --- |
| [System](SYSTEM.md) | Bolt card system overview |
| [Specification](SPEC.md) | Bolt card specifications |
| [Privacy](CARD_PRIVACY.md) | Bolt card privacy |
| [NXP 424 Datasheet](NT4H2421Gx.pdf) | NXP NTAG424DNA datasheet |
| [NXP 424 Application Note](NT4H2421Gx.pdf) | NXP NTAG424DNA features and hints |