1. Built-in high-frequency antenna, antenna depth matching, eliminate blind spots, read the whole card data without interruption. 2. increase Parse key rate , the size of the card takes all. 3. sniffing data, complete stable, low error rate. 4. The low frequency antenna to the signal to noise , the higher the recognition rate, detachable design to meet various needs. 5. No antenna interface, not need have to plug because it is easy to damaged. Cancel the lithium battery, simple and convenient. (Offline can use mobile power supply) In addition to the original relay and other unrelated, low cost, lightweight and portable. Compatible with all firmware, according to need to brush any version. According to your preference, you can use the " Line" or "Proxmark Tool.exe" to operate # antenna: 30.41 V @ 125.00 kHz # antenna: 22.01V @ 134.00 kHz # HF antenna: 28.43V @ 13.56 MHz (Low frequency antenna installed on the left) colour: as shown Material: ABS Size: 8.7x5.4cm Package Contents: 1 x Full encryption card Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.