100pcs/Lot Blue RFID 125khz Key EM4100 Keyfobs Ring Chip Keytab TK4100 125khz Read Only

Brand Name: 5YOA
Origin: Mainland China
Frequency: 125khz
Model Number: EM4100
Power: Passive Card
Chip Type: Contactless ID Card
Size: 3.5cm*2.9cm*0.5cm
Read Range: 0-3cm
Recognition Mode: Read Only
Contours: Alien Card