Mazhaha 10Pcs TK4100 keychains 125KHZ RFID proximity id card token tags key fobs NFC

Description: 100 new and high quality. Color: Blue. Material: ABS Metal. Operation Frequency: 125Khz. Detecting Distance: 3-5cm. Storage Capacity: 64 bits. Size: 34.55x27.91x5.45mm. Suitable: for enterprise card, campus card, bus stored value card, express way fees, parking, district management, Attendance systems, patrol system, enterprise systems, access control systems, radio frequency identification field and so on. Each token pre-programmed with unique ID which is printed on it. Each comes with Key ring included. Compatible with all RFID reader to gain access. Waterproof, shockproof, anti-corrosion. Can be hung on channeling keychain for easy carrying. Package Includes: 10x RFID Key Chain. Note: It can only read, can't write. Description: 100 new and high quality. Color: Blue. Material: ABS Metal. Operation Frequency: 125Khz. Detecting Distance: 3-5cm. Storage Capacity: 64 bits. Size: 34.55x27.91x5.45mm. Suitable: for enterprise card, campus card, bus stored value card, express wa