Feature:1. 13.56MHZ working frequency, highly sensitive, 1.22in sensing distance (depending on the card reader), 0.1 second sensing time.2. Wide applications, ideal for access control, time attendance, elevators, parking lots, hotel door locks, etc.3. Adopt UID chip, 1K storage capacity, erasable life of more than 100,000 times, and data storage up to 10 years.4. Made of high grade PVC material, lightweight, flexible, anticorrosion and durable for longterm use.5. Total of 50pcs access cards, which can completely meet your needs, practical and economical.Specification:Item Type: IC Access CardMaterial: PVCPurpose: Access control, time attendance, elevator, parking lotChip Type: UIDStorage Capacity: 1KWorking Frequency: 13.56MHZDiameter: Approx. 25mm/1inReading Distance: Approx. 3-5cm/1.2-2inRead And Write time: 67 millisecondsWorking Temperature: -20 to 55CErasable Life: >100000 timesData Storage: 10 yearsApplication: 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 IC Access Cards