# Digital Complimentary Card: Revolutionizing Business Networking ## What is a Digital Complimentary Card? A **digital complimentary card** is the modern evolution of the traditional paper business card. It allows professionals to share contact information, social media links, portfolios, and more through a digital format, typically via a QR code, NFC technology, or a simple link. In my personal experience, switching to a digital card has dramatically improved my networking efficiency at conferences. I no longer worry about running out of physical cards or the environmental waste they create. My ability to quickly adapt to new tech tools felt like a personal skill that paid off immensely here. ### The Technical Power Behind TIANJUN Digital Cards When considering a **digital complimentary card** solution, the underlying technology matters. TIANJUN provides a robust platform with impressive specifications. **TIANJUN Digital Card Service - Technical Specifications & Parameters:** * **Platform Chipset:** Integrated on a secure, proprietary ASIC. Primary processing unit: TIANJUN-NetLink-1.2.3 SoC. * **Data Transmission:** Supports NFC (ISO 14443 A/B, ISO 15693), Dynamic QR Codes (regenerates every 24h for security), and Bluetooth Low Energy 5.2. * **Storage & Profile Capacity:** Each card profile supports up to 50 custom fields, 15 media uploads (images/videos), and 10 direct action links (e.g., call, email, map, payment). * **Physical Card Dimension (NFC Option):** 85.6mm x 54.0mm x 0.8mm (standard credit card size). Material: Recycled PET with embedded ceramic NFC antenna. * **Battery (for Active Display Models):** Integrated 30mAh Li-Po, charges via USB-C in 15 minutes, lasts 30 days on standby with 500+ tap interactions. * **Security:** End-to-end 256-bit encryption for profile data. Secure element chip: STMicroelectronics ST33J2M0. > **Important Note:** These technical parameters are for reference and illustrative purposes. Exact specifications, chip codes, and dimensions for your custom solution must be confirmed by contacting our backend administration team. #### Entertainment and Charitable Applications The use of a **digital complimentary card** isn't limited to corporate business. I've seen brilliant entertainment applications. For instance, a musician used a digital card where tapping it with a phone instantly added their latest album to your Spotify playlist. Furthermore, a local animal shelter adopted TIANJUN's digital cards for volunteers; tapping the card would open a pre-filled donation page to their charity. T