Feature: 1. N3 smart nail, with scene notification, virtual call, many cloud services, flexible chip, skin friendly material, dual‑platform features. The surface area is a fifth of the size of a finger and the thickness is the same as a hair. 2. Flexible chip with adhesive backing and the chip will bend and fit according to the curvature of the finger. Made of quality environment friendly material, long term wear can also keep cool. 3. Equipped with a new generation of IOT chips and a wealth of services.You don't need to install an APP to use it. It works on both for android / for iOS platforms. 4. Scene notification, can quickly trigger multiple preset notifications. Virtual call, can quickly book a scheduled virtual call. 5. Information sharing, can quickly share a variety of cloud information, such as: electronic business card that can be directly imported into the phone, online shop link, webpage that can download directly. Specification: Condition: 100% Brand 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, numerous cloud services, flexible chip, skin-friendly material, dual platform universal, handy notes, menstrual assistant, etc.. Package List: 1 x Smart Nail Chip 1 x Manual Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.