# KeyPal Card Main Features Overview ### **Product Introduction** **KeyPal Card** is a mnemonic phrase backup card developed by the TokenPocket team, based on NFC technology. It is designed to provide users with a more convenient and secure experience for storing and restoring mnemonic phrases. Compared with traditional paper backups, KeyPal Card encrypts and stores the mnemonic inside the card’s secure chip, greatly improving the reliability and security of asset recovery.
### ✨ Key Features #### 🔐 1. NFC Encrypted Storage * Equipped with a financial-grade secure chip, mnemonic phrases are encrypted and stored only within the chip. * Interacts via NFC with TokenPocket, KeyPal 2, and other wallets to enable touch-based backup and restore. * Entire process requires no internet connection, eliminating exposure risks. #### 📲 2. Touch-Based Recovery Experience * When users need to restore a wallet, simply place the KeyPal Card close to TokenPocket or KeyPal 2. * NFC sensing enables secure and fast data interaction during recovery. * Compared to manual input, it prevents spelling errors and input exposure risks. #### 🛡️ 3. Multiple Physical Protections * Encrypted physical storage, suitable for preservation in various environments. * Anti-magnetic interference, ensuring long-term storage safety. * Compared with traditional paper backups, it offers higher efficiency and better privacy protection. #### 🔒 4. Security Mechanisms * Encrypted card — mnemonic phrases must be accessed and verified through TokenPocket or KeyPal 2 offline devices. * Asymmetric encryption with root certificate verification prevents unauthorized tools from attempting to read data, reducing social engineering attack risks. * Protected by device PIN encryption, ensuring that only the owner can use it, keeping control fully in the user’s hands. #### 📦 5. Use Cases * Long-term cold storage: Paired with TokenPocket or KeyPal 2 hardware wallets for truly offline backup of mnemonic phrases. * Convenient backup/restore: Supports repeated backups, allowing quick wallet recovery with KeyPal Card. * For different user groups: Easy operation with the KeyPal Secret Box (metal safe box); higher security with KeyPal Card encrypted storage; combined use enhances redundancy and overall security. ### **Technical Specifications**
ItemParameter
ChipFinancial-grade secure chip (SE)
CommunicationNFC (13.56MHz)
ProtocolISO/IEC 15693
Form FactorBank card standard (85.6mm × 54mm × 1mm)
MaterialPolymer composite, rewritable, easy to store, waterproof
LifespanOver 500,000 read/write cycles, supports long-term storage
CompatibilityKeyPal 2 and TokenPocket wallets
📌 Mission of KeyPal Card: Replace fragile paper backups with a more durable, secure, and intelligent solution for mnemonic storage — becoming the last line of insurance for users’ crypto assets. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://keypal.gitbook.io/en/user-manual/keypal-card/tutorial/features.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.