1.Built-in high-frequency antenna, antenna depth matching, blind spots, read the whole card data flowing 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 improve the signal to noise ratio, the higher the recognition rate.5.No antenna interface, not need to plug. Because it is easy to damaged.Power by Usb port, simple and convenient. (can use mobile power supply)Warning: This does NOT have quick-swappable/detachable antennae. It is built on the Easy platform, and has 512K flash EEPROM, so you can flash the latest / firmware.This requires some knowledge to flash firmware and operate. You will need a computer and be comfortable running terminal line commands to use the Proxmark 3.EEPROM 512K: AT91SAM7S512 controller means you can install latest and greatest firmware.Proxmark 3 Easy , 125 khz/ 134.2 Khz/ 13.56 Mhz.Support LF chip: such as T55xx, EM4100, -B Animal Tag, H-ID.Support HF chip, such as MF 1k, 4K, etc,This comes with 10 Cards. 2 x T5577 ID card, 2x S50 IC card, 2x UID IC card, 2x CUID IC card, 2x S50 IC key tag.and portable.:PM3 Easy 3.0 512KWorking Voltage: 3.5- 5.5VWorking current: 50-130mThickness: 1.6cmnote:(Some accessories style are random,don't accept the specified)Colour:Photo ColorMaterial:plasticSize:8.8x5.5 x1.6cmPackage Contents:1 x Proxmark3 V3.0 DEV Easy 512 Module1 x USB Data Cable2 x 13.56Mhz 1 S50 PVC Card2 x 13.56Mhz UID PVC Card2 x 13.56Mhz CUID PVC Card2 x 13.56MHz RFID Key IC Tag (Blue)2 x 125Khz x T5577 ID PVC CardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.