Protocol: EPC CLASS1 Gen 2 / ISO 18000-6C/ ISO18000-6B Chip: NXP( SL XL XM) Frequency: 840? 960MHZ Memory capacity: 96/ 368/ 512/ 880/ 1024/ 2048bit Dimension: 244x12x13 mm Work mode: Read/ Write Storage time:  10years Erasable times:  100, 000times Material: PCB antenna, ABS cover+ Aluminum alloy back panel Application: License plate tag, Mount on the license plate position