Feature: 1. Smart nail with scene notification, virtual call, cloud services, flexible chip, skin-friendly material, and dual-platform compatibility. The surface area is a fifth of the size of a finger and the thickness is comparable to a human hair. 2. Flexible chip with adhesive backing that bends and conforms to the curvature of the finger. Made from high-quality, eco-friendly materials for comfortable long-term wear. 3. Equipped with a new generation IoT chip and integrated services. No app installation required. Compatible with both Android and iOS platforms. 4. Scene notification feature allows quick triggering of multiple preset alerts. Virtual call function enables scheduling of virtual calls. 5. Information sharing capability allows fast exchange of cloud-based data such as electronic business cards, online shop links, and downloadable web pages. Specification: Condition: 100% New Item Type: Smart Nail Chip Size: Approx. 5 x 5 x 0.12mm / 0.2 x 0.2 x 0.005in Weight: Approx. 0.01g / 0.004oz RF Frequency: 13.56MHz Features: Scene notification, virtual call, cloud services, flexible chip, skin-friendly material, dual-platform compatibility, handy notes, menstrual cycle assistant Package List: 1 x Smart Nail Chip, 1 x User Manual Note: Please note that either the new or old version of this product may be shipped at random. Please ensure you are comfortable with this before placing your order.