Simple operation: The process is simple—just hover your phone over the 215 coin tag and the data will be automatically transferred to your phone. No power source, battery, or manual pairing required. Small size and durable design: The circular NFC sticker has a diameter of 25mm, making it compact and portable. It fits a standard white PVC card, featuring a shiny surface and waterproof PVC material that effectively protects the internal NFC chip. Wide range of applications: These PVC NFC stickers can be used for smart advertising, mobile phone pairing, WiFi connection, electronic shelf labels, business cards, and more. Package includes: 30 round NFC stickers (25mm), rewritable NFC tags with 504 bytes of fully programmable memory, compatible with NFC-enabled devices. Readable and rewritable: Thanks to their read/write functionality, these NFC sticker tags allow users to update and access data at any time. The internal chip enables fast data reading. Please note that an NFC-compatible device is required. Suitable uses: Use the tags to set alarms, enable WiFi, make calls, launch apps, connect to networks, display messages, share contacts, show addresses or locations, access social media, open websites, and more. Color: White Material: PVC Package contents: 30 x 25mm NFC stickers Note: Only the items listed are included. Other accessories are not part of the package. Note: Lighting conditions and monitor settings may cause slight color variations compared to the actual product. Measurement may vary by +/- 1-3 cm.