125Khz RFID Wristband Read Only ID Blue Silicone EM4100 TK4100 Proximity - 50pcs

Describe:

.Chip: EM4100 / TK4100
.Operation frequency: 125Khz
.Material: Silicone (100% SGS approved, RoHS, eco-friendly)
.Color: Blue/Black

Package include:

.2Pcs 125Khz EM4100 Wristband