1. Built-in high-frequency antenna, matching antenna depth, eliminating blind spots, reading the entire data card without interruption. Increase the frequency of the key, the size of the card can accommodate everything. Data analysis, completely stable, and low error rate.The low frequency antenna improves the signal-to-noise ratio, the recognition speed is higher, and the mobile design can meet various needs. 2. No antenna interface, no need to connect because it is easily . Cancel lithium battery, easy and convenient. (In offline mode, you can use mobile power). Except that it has to do with the old relay, it has low cost, light weight and easy to carry. Compatible with all official firmware, can clean any version as needed. Depending on your preference, you can use the official " line" or "Proxmark Tool.exe" to work 3. DOUBLE port usb. From AT91SAM7S256 to AT91SAM7S512. (Low-frequency antenna is installed on the right) Antenna #LF: 30.41 V @ 125.00 kHz; Antenna #LF: 22.01 V @ 134.00 kHz; #HF antenna: 28.43 V @ 13.56 MHz; (Low-frequency antenna is installed on the left) Working voltage:3.5-5.5V, Current work: 50-130mA 4. NOTE:The phone stickers and glue cards in the product pictures are sent randomly without remarks. The machine shows v3, which is a printing problem. You can directly flash the v5 firmware without affecting the use. Please note.<br><br>Card operation mode: 1. Ordinary M1 S50 card reader and other Type B 14443A cards 2. Analyze PRNG 0 using department-specific security 3. Use embedded (mfoc) security to solve the entire map Analog card mode: 1. the user ID of IC S50/Ultralight/DESFire series cards 2.Analog data M1 S50 for the entire sector.(Select card reader) 3. the shell M1 S50 and obtain the data used to calculate the key(select card reader) Silentmode: 1. A quiet data mission analyzer between the M1 S50 card and the card reader,analyzing the key 2.