Luminous display,The upper cover of the shell is printed with luminous material, which absorbs light during the day and emits light at night, making it convenient for inspectors to patrol at night Belt to metal 13.56MHz frequency Application: Ideal for security patrols, asset tracking, and maintenance checks, enhancing operational efficiency and reliability Storage capacity:1K (16 sectors) Chip model: FM11RF08S Working frequency:13.56MHz Working Agreement:ISO-14443A Reading distance:3~10cm Working temperature:-20C~85C Period of use:Erasing 100,000 times, storage 10 years Product specifications:70x60x8mm Application scope:Internet of Things, asset management, product identification, inspection equipment management, identity authentication, etc. (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: ABS Package Contents: 10 * RFID Card 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.