⭐ This is just a read-card. It must be activated in the Access Control System before it can be used. ⭐⭐ This is NOT a copy/duplicate card. ❤️❤️❤️“Warm reminder, if the buyer places a wrong order without asking clearly and reading the product details carefully, we will not provide product returns or refunds. If you have any questions about the product, you can consult us first, thank you for your cooperation." ❤️❤️❤️ 📢📢 Ready Stock 📢📢 ** Not for Duplicate/Clone Copier use ** 📢📢 1pcs (No Brand) Proximity RFID 125Khz (Thick) Card 📢Recommended to buy a small amount for trial first, and then buy in bulk when it is suitable for use. 📢📢 ** Non-Sequence Number ** 100% Brand New Size: 85.6 x 54 x 1.8 mm Material: PVC Color: Blank White Operation frequency: 125Khz Detecting distance: 4 -10cm (Depends on the Reader) Compatible with all EM Door Entry system Compatible with all RFID reader to gain access No external power required