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Nowadays, more and more companies and individual users like metal cards that combine technological performance and high-end texture. Metal cards are n

The hotel card, a seemingly inconspicuous thin card, actually contains rich functions and diverse appearances.

The access card used in this community has the function of gradually realizing the identity recognition of people and vehicles entering and leaving th

Access control cards are mainly the following types of cards: EM card, M1 card, TM card and CPU card, etc.

The information inside can not only be read, but also written and modified. Therefore, the chip card is not only a key, but also an electronic ID card

The original intelligent access control system consists of a host, a card reader and an electric lock (a computer and a communication converter are ad

The combination of any two of the three low-frequency cards, high-frequency cards, and ultra-high-frequency cards: also commonly known as dual-frequen

Dual-frequency cards are multi-purpose proximity cards that are composed of two smart cards with different frequencies.

Convenient payment: NFC technology enables mobile phones and other devices to simulate bank cards.

The transmission distance of NFC is usually within 10 cm, and it communicates through radio waves

NFC cards have a wide range of application scenarios.

NFC cards are divided into two types: passive and active, depending on whether they have power.