General description These 50PCS RFID NFC smart chip badges are designed for UID access control and are rewritable, allowing for easy cloning and customization. Made from durable ABS material, these thin cards operate at a frequency of 13.56MHz, making them suitable for various applications. Technical specifications Quantity: 50 cards Frequency: 13.56MHz Material: ABS Measurement error: +/- 1-3cm Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.