Features: 1. Smart Nail Sticker: NFC Smart Nail Sticker is a high-tech product that can be used for access control cards, bus cards, and other compatible applications. 2. Embedded Smart LED: The smart LED adopts mobile near-field communication technology (NFC); no battery required in the nail sticker. 3. Simple Operation: The smart nail patch function is very simple. As long as you use an NFC-enabled phone, your nails will glow. 4. Multifunctional: In addition to mobile phones that can make fake nails shine, many other electronic devices equipped with NFC functionality are also compatible. 5. Fashionable and special nail stickers, popular among girls, stylish and unique. Size: 0.7 x 1.1 cm Function: Can be used with other nail products Instructions for Use: First, check whether your mobile phone supports NFC function. For example, turn on the mobile phone and navigate to Settings More Connection Methods Find NFC Then Open. Note: Some systems currently have NFC but may have it turned off by default; the NFC function will automatically activate after upgrading to the latest system. NFC Nail Sticker Operation Steps: Step 1: Clean and trim fingers, apply a layer of transparent nail polish. Step 2: Open the package and take out the NFC nail sticker, remove the white paper on the back of the NFC nail sticker. It is recommended to stick the NFC chip on the index finger. Step 3: Select a piece of nail sticker you like. Step 4: Place it on the chip of the nail sticker, ensuring the LED light is exposed. Step 5: Apply a layer of transparent nail polish on the nail surface. Size: 0.7 x 1.1 cm Material: Plastic + FPC + copper Color: Yellow Package Contents: 5 x LED Nail Light Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement may vary by +/- 1-3 cm.