Features: Built-in high-frequency antenna, antenna depth matching, eliminate blind spots, read the whole card data flowing without interruption Sniffing data, complete stable and low error rate The low frequency antenna improve the signal to noise ratio, the higher the recognition rate Detachable design to meet various needs No antenna interface, did not need to plug because it is easy to damaged Without lithium battery, simple and convenient to use (Offline can use mobile power supply) Compatible with all official firmware, according to need to brush any version Specification: Condition: 100% Brand New Material: ABS Plastic Color: As Picture Shown Size: 54 * 86.6mm/2.1 * 3.4in Thickness: 6.2mm (thinnest) 9.8mm (plus screw) 15.8mm (plus low frequency antenna) Working Voltage: 3.5-5.5V Current Job: 50-130mA Package Weight: Approx. 126g/4.4oz Low frequency antenna installed on the right side #LF Antenna: 29.84 V @ 125.00 kHz #LF Antenna: 32.31V @ 134.00 kHz #HF Antenna: 28.43V @ 13.56 MHz Low frequency antenna installed on the left side #LF Antenna: 43.86 V @ 125.00 kHz #LF Antenna: 24.48 V @ 134.00 kHz #HF Antenna: 25.13 V @ 13.56 MHz Package List: 1 * IC/ID Reader 5 * Card 1 * USB Cable Note: 1 Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1、Built-in high-frequency antenna, antenna depth matching, eliminate blind spots, read the whole card data flowing without interruption 2、Sniffing data, complete stable and low error rate 3、The low frequency antenna improve the signal to noise ratio, the higher the recognition rate 4、No antenna interface, did not need to plug because it is easy to damaged 5、Without lithium battery, simple and convenient to use (Offline can use mobile power supply)