Key features: Dc3.3v ~5v power supply, uart-ttl interface Compliant with iso14443a/b, iso15693 standard, Support mifare classic 1k /4k, mifare ultralight/ultralight c, mifare pro, iso14443a-4 contactless cpu card, i code sli, ti 2048, etc External antenna, reading range up to 5 ~ 7cm External led and buz available (external driver circuit needed) Technical Parameters: Electrical Specification Power supply DC 3.3V ~ 5V Power consumption Max current
