Item Type: Proximity Card Material: PVC Uses: Access control, time attendance, elevator, parking lot Induction Distance: Approx. 2-10cm/0.8-3.9in (depending on the card reader) Working Frequency: 13.56MHZ Working Temperature: -40-55 Application: Applicable to access control, hotel door locks, employee attendance, campus access control payment control, identification and security systems, parking lot access control payment, social security management, transportation payment, municipal and auxiliary service payment, etc. Package List 50 x Proximity Cards 1Sensitive sensing, 0.83.9in sensing distance (depending on the card reader), 0.1 second sensing time. 2Can be used for access control, time attendance, elevators, parking lots, hotel door locks, etc. 3Using superior PVC material, waterproof and drop resistant, can cope with all kinds of environments. 4Compact size, light weight, this card is easy to store and carry around with you. 5Total of 50pcs access cards, which can completely meet your needs, practical and economical.