Get ready to experience the advanced, stylish Gray Water Ops® NFC embedded Smart Coin® - the ultimate combination of technology and elegance. This sample coin is minted and sold individually to try the technology. The chips are formatted but unprogrammed so you can program them for your specific use. We recommend NFC Tools as the app on android or iPhone. The simplest use is to program a website on the chip. Then when someone taps a NFC enabled smartphone to the coin, the website browser opens on their phone and takes them to the destination stored on the chip.