SMC-E1334(female tag)/SMC-1334M( male tag) R/O 128bits SMC-EWB1334(female tag)/SMC-EWB1334M (male tag )R/W 256bits 1.standard operating frequeny: 134.2KHz 2.meet the standard of ISO11785 3.worldwide exclusive sequence number 4.size: diameter less than 34mm, height less than 27mm 5.operating temperature: 6.storage temperature: 7.data can be stored for more than 5 years 8.plastic material contains no lead and toxic