# Chaveiro NFC Personalizado ## What is a Custom NFC Keychain? A **Chaveiro NFC Personalizado** is a modern, tech-enabled accessory that combines the utility of a traditional keychain with the power of Near Field Communication (NFC) technology. These keychains contain a small NFC chip and antenna, allowing them to wirelessly communicate with smartphones and other NFC-enabled devices with a simple tap. They can be fully customized in design, data, and function, serving as a digital business card, a smart business tool, or a unique promotional item. From my personal experience, switching to a custom NFC keychain was a game-changer. As someone who frequently attends networking events, fumbling for paper cards felt outdated. I designed a keychain with my company logo, and now sharing my contact information is as easy as a tap. It never fails to impress and has genuinely sparked more conversations and connections than my old paper cards ever did. It feels like a small piece of futuristic tech that I carry every day. ### Technical Specifications and Parameters of Our NFC Keychains For those interested in the technical backbone of our products, here are the detailed specifications. *Please note: These technical parameters are for reference. For precise specifications for your order, please contact our backend management team.* * **Chip Type:** NTAG 215. (Other compatible chips like NTAG 213, 216, or ICODE SLIX2 are available based on requirements). * **Chip Memory:** 504 bytes user memory, 32-bit password protection capability. * **Communication Frequency:** 13.56 MHz. * **Communication Standard:** ISO 14443 Type A. * **Read/Write Distance:** Typically 3-5 cm, depending on the device. * **Data Retention:** Up to 10 years. * **Write Cycles:** Minimum 100,000 cycles. * **Dimensions (Standard Keychain):** 45mm x 30mm x 3mm. Custom shapes and sizes are available. * **Material:** Durable ABS plastic shell, with options for epoxy resin coating, soft PVC, or leather. * **Op