Feature: 1. 13.56MHZ working frequency, highly sensitive, 1.2‑2in 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, anti‑corrosion and durable for long‑term use. 5. Total of 50pcs access cards, which can completely meet your needs, practical and economical. Specification: Item Type: IC Access Card Material: PVC Purpose: Access control, time attendance, elevator, parking lot Chip Type: UID Storage Capacity: 1K Working Frequency: 13.56MHZ Diameter: Approx. 25mm/1in Reading Distance: Approx. 3-5cm/1.2-2in Read And Write time: 67 milliseconds Working Temperature: -20 to 55°C Erasable Life: >100000 times Data 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