RFID wrist-watch style adjustable wristbands, nice, flexible, adjustable the wristband length adjustment holes, suitable wear for different thick wrist, easy to wear, chéen ch'a'abil u biilankiltej, waterproof, 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, logotipo, QR code and so on. Existing mold use free. ODM and OEM products according to customer demand.