RFID HF LF Sticker 3M Adhesive PVC coin tagcontain small microchips with little aerials which can store a small amount of information for transfer to another NFC device.The tag contains electronically stored information which can be read from up to several meters (yards) away. Unlike a bar code, the tag does not need to be within line of sight of the reader and may be embedded in the tracked object.
The so-called Epoxy Tag is made after the finished tag, making the epoxy craft on the tag appearance, then it becomes the epoxy tag ,and there are one-side epoxy tag and two-sides epoxy tag .It also known as crystal epoxy tag with shaped size, that is, non-standard size card tag.