... tag, RFID long range read tag. 2.45GHz Active key FOB tag, active RFID tag, RFID long range read tag. Performance ... a kind of active tag that can be on key fob.l FHSS working mode, with anti-jamming capacity.l Customer ... area for users to use permanently. Specification ModelMR3821ATag TypeActive key fob styleWorking Frequency2.45GHzSense ModePassive sense or auto sense optionalMemory240Bytes erased ...