Protocol: EPC CLASS1 Gen 2 / ISO 18000-6C Chip: Impinj 4D 4E 4QT or others Frequency: 840? 960MHZ EPC Memory: 128 496 bit optional User Memory: 32 128 512 bit optional Dimension: 5 x 36mm Work mode: Read / write Storage time: > 10 years Erasable times: 100, 000 times Material: ABS Plastic Installation: rivet or insert