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How to Use Your NFC-Enabled Keychain Elevate your Stayzoo keychain by making it functional! This design is optimized for standard circular NFC stickers (up to 26mm). Here’s how to set it up:

1. Preparation & Assembly Sticker Type: Use NTAG213 or NTAG215 NFC stickers (25mm or 26mm diameter). Installation: Simply peel the adhesive backing off your NFC sticker and press it firmly into the designated circular inset within the 3D-printed housing. Finishing: Once the sticker is secured, snap or glue the cover piece (if applicable) to protect the chip from scratches and wear.

2. Programming Your Keychain You don’t need special equipment—just a smartphone! Download an App: Use a free app like NFC Tools (available on iOS and Android). Write Data: Open the app, select "Write," and choose what you want your Stayzoo character to do.

Tap to Save: Hold your phone near the keychain to "burn" the action onto the chip.