Size: Standard keyfob size, customizable
Material: ABS 
RFID Chip Options:
Low Frequency (LF): EM4100, T5577 (125 kHz)
High Frequency (HF): MIFARE Classic 1K, MIFARE DESFire EV2, NFC (13.56 MHz)
Ultra High Frequency (UHF): Alien Higgs-4, Impinj Monza R6 (860-960 MHz)
Operating Frequency: Depending on RFID chip type
Read/Write Distance:
LF/HF: Up to 3 cm
UHF: Up to 2 meters (depending on reader and environment)
Data Storage: Varies by chip type, ranging from 128 bits to 4K bytes
Durability and Environmental Resistance:
Waterproof Rating: IP65 or higher
Temperature Resistance: -30°C to +75°C
Shock and Vibration Resistance: High

Tamper-Evident Design: Rugged and durable for everyday use
Data Encryption: Supported by certain HF and UHF chips
Unique Identification: Each keyfob has a unique serial number
Application Scenarios:Access Control: Residential, corporate, and facility access
Identification: Membership, personnel identification
Loyalty Programs: Retail, hospitality services

Packaging:
Individual Packaging: Wrapped in protective material
Bulk Packaging: Available in quantities of 50, 100, or 200 per box
Certifications and Compliance:
Standards: Complies with ISO/IEC standards relevant to chosen RFID chip