1、High Quality Material: Made of high quality ABS material, light in weight and portable, it's easy to carry out, waterproof and durable 2、EEPROM: Using EEPROM technology, data can be stored for more than 10 years, no worry about data missing, convenient and safe 3、Covenient and Safe: The read distance is about 0-5cm, no need to touch the access control machine, convenient and safe 4、Portable: Each token tag is equipped with a key chain, you can hang it on your belt or in your wallet to prevent loss 5、Wide Application: Suitable for access control, parking lot, identity authentication, attendance management, product identification, etc. 20 x Token Tag Item Type: ID Token TagChip Model: EM4100 TK4100 integrated circuitChip usage: read onlyWeight: Approx. 100g / 3.53ozMemory Capacity: 64 bitsWorking Frequency: 125KHzWorking Temperature: -20℃~60℃Reading Times: >10000 timesDetection Distance: 0-5cm / 0- 1.97inMaterial: ABSPower Supply Mode: passive cardLifespan:> 10 yearsFeatures: waterproof, moisture proof, shockproofPurpose: access cardRead and Write Time: 1msColor: blue