... plastic Round Strong Waterproof NFC NXP NTAG203 RFID Tag working with all nfc mobile phones 1.Waterproof, durable, and fashion ... 2cm diameter, and other sizes shapes are available4. Can be with custom logos5. It is using Ultrasonic plastic welding technlogy, not ... , laser engrave, and number printing. The tag are available with broad range of RFID technology, from low frequency 125KHz EM unique, Atmel ...