# Flipper RFID: A Comprehensive Guide to RFID Technology and Applications ## What is Flipper RFID? **Flipper RFID** refers to the RFID (Radio-Frequency Identification) functionality integrated into the popular Flipper Zero multi-tool device. As a pentester and hardware enthusiast, I've found the Flipper's RFID capabilities to be remarkably versatile for both security research and practical applications. The device can read, emulate, and write to various RFID and NFC tags, making it an essential tool in my testing kit. ## Technical Specifications of Flipper RFID Module For those considering **Flipper RFID** for their projects, here are the detailed technical parameters: * **Frequency Support:** LF 125 kHz, HF 13.56 MHz * **Supported Protocols:** * LF: EM4100, EM4102, HID Prox, Indala, and others * HF: ISO14443A (MIFARE Classic, Ultralight, DESFire), ISO14443B, ISO15693, FeliCa * **Chipset:** Integrated proprietary chip (Firmware code: `R00` for LF operations, `F7` for HF/NFC operations) * **Antenna Dimensions:** Integrated PCB antenna measuring 38mm x 22mm * **Read Range:** Approximately 0-5 cm for HF, 0-7 cm for LF (highly dependent on tag type and power) * **Power Consumption:** ~45mA during active read/write operations > **Important Note:** These technical parameters are reference data. For the most accurate and up-to-date specifications for integration or commercial use, please contact the backend administration team at TIANJUN. ## My Experience with RFID Security Testing In my personal work assessing physical access systems, **Flipper RFID** has been invaluable. I once used it to demonstrate a vulnerability in an older building's HID ProxCard system during a security audit. By cloning an authorized card, I could highlight the risks of relying solely on 125 kHz technology without additional authentication factors. This hands-on experience solidified my view that understanding RFID technology is crucial for modern security professionals. ## Skill Development and Practical Applications Mastering the **Flipper RFID** module has developed into a genuine skill for me. Bey