RFID tag,RFID card,2.45GHZ active tag,smart tag,water-proof,with switch,save battery

Model name MR3810
Card shape Card
Frequency range 2.4GHz
Induced mode Auto-induced, timing transmit after outside factory two seconds
Identified distance 3-80M
Material PET, heat-proof, water-proof
Dimension 87*55*5.5mm
Weight 20g
Battery Inside button lithium, can use continuously two years.