Description: This item is an access control RFID Smart card, with features of 125KHz ID card, which is widely used as a key for door entry access control system. We have tested strictly with this production and the production quality is very well, pls no hesitate to choose and use it. Features: Each one comes with Key ring included. Read only, Can not be programmed. Not a HID card Compatible with 125KHz ID reader or access devices. Waterproof, shockproof, anti-corrosion. Can be hung on channeling keychain for easy carrying. Specifications: Condition: 100% new and high quality Color: Blue Material: Plastic & Metal Operation Frequency: 125Khz Detecting Distance: 2-5cm Storage Capacity: 64 bits Package weight: 47g Scope of Application: enterprise cards, campus cards, bus cards, courier fees, parking fees, regional management, time and attendance systems, patrol systems, enterprise systems, access control systems, radio frequency identification, etc. Package List: 10 x RFID Key Chain 1、Each one comes with Key ring included. 2、Read only, Can not be programmed. Not a HID card 3、Compatible with 125KHz ID reader or access devices. 4、Waterproof, shockproof, anti-corrosion. 5、Can be hung on channeling keychain for easy carrying.