XYBkey 100-pack RFID Keychains, 125KHz Access Control Card ID Cards, Suitable for Access Control Systems, Keychain Card Token Tags (Blue)

["Durable Material: Made of high-quality ABS waterproof material, lightweight and durable, equipped with a metal key ring for easy carrying and use.","Stable performance: operating frequency 125KHz, sensitive sensing, reading distance up to 0-10cm, and fast recognition.","Security design: supports read-only function, cannot be copied/written, effectively ensuring the security of the access control system.","Wide application: Suitable for apartments, office buildings, factories, communities, parks and other access control places.","High compatibility: Compatible with 125KHz RFID card readers, access controllers and fingerprint time attendance machines, making security management easy."]