1.Proxmark3 V2 ELECHOUSE is upgraded from ELECHOUSE Proxmark3 V1. You could know more from the V1 page. The ic card writer has quick-swappable/detachable antennae. And has 512K flash EEPROM, so you can flash the latest RRG/Iceman firmware, which is too big for a 256K proxmark3, but allows for advanced functions, especially cracking. 2.This programmable proxmark3 kit features 2 USB Ports allow portable power source for portable sniffing/spoofing/reading. Atmel 512kb AT91SAM7S512 controller means you can install latest and greatest Iceman firmware 3.This proxmark 3 rfid programmer Read, Write, Clone, Copy, Spoof RFID tags of 13.5mHz and 125kHz, including HID, Indala, T55xx, IC Classic / 1k, and more. Typical RFID cards and fobs for apartments, work, garages, gates, and other doors use these technologies, so you can make copies. 4.This prox reader requires some knowledge to flash firmware and operate. You will need a laptop/desktop computer with a USB port and be comfortable running terminal / command line commands to use the Proxmark 3 v2. 5.This rfid cloner comes with a rewriteable T5577 (125khz) fob and Changeable UID 1k (13.5mhz IC) fob. If you want lots of tags/fobs, or specific tags/fobs, message me, and Ill create a custom item for you. Reader, writer, copier, cloner, RFID, NFC. Colour:As Shown Material:plastic+metal Package Contents: 1 x PM3 DEV Encoder Develop Suit Kits(Due to different product batches, the appearance may be different, which does not affect use.)