RFID Smart Chip Card Reader Copier+3xUID Keychain NFC Encryption Key Reader IC 13.56Mhz RFID Token Support IC 13.56Mhz Frequency Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Colour:As Shown Material:Plastic Package Contents: 1 x RFID Reader 2 x Adapter(The color and appearance are random, and the designation is not accepted) 1 x USB Cable(The color is random, and the designation is not accepted) 3 x UID Keychain (The color and appearance are random, and the designation is not accepted) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.