Key Features of Custom TK4100 EM4200 T5577 Programmable RFID Keyfob

High-Quality ABS Material
Durable ABS plastic construction ensures long-lasting performance, resistant to wear and tear in daily use.
Dual-Frequency Compatibility
Supports both 125Khz (TK4100/EM4200) and 13.56Mhz (T5577) frequencies, offering versatile programming options.
Rewritable & Programmable
Allows unlimited UID rewrites, ideal for access control, security systems, and NFC applications.
Compact & Functional Design
Includes a convenient keychain attachment for easy portability, perfect for keys, bags, or lanyards.
Wide Application Scenarios
Suitable for office security, hotel room access, gym lockers, public transport cards, and IoT device authentication.
Bulk Order Advantage
Global wholesale pricing with competitive rates for large-volume purchases, ensuring cost-efficiency.