RFID wrist-watch style adjustable wristbands, nice, flexible, adjustable the wristband length adjustment holes, suitable wear for different thick wrist, easy to wear, easy to use, chosalowa madzi, damp proof, shockproof, and high temperature resistance. Can encapsulation three type frequency RFID chip, to achieve a variety of application purpose. Surface can be silk screen pattern, LOGO, QR code and so on. Existing mold use free. ODM and OEM products according to customer demand.