... shapes available, High quality ABS/PC, Ultrasonic plastic welding Different chips 125KHz, 13.56MHz, shapes available, High quality ABS/PC ... Colors: Available Red, black, yellow, blue, grey, green... IC available at 125KHz nominal:TK4100, EM4100, EM4102, EM4450,NXP Hiatg1 ... , Hitag2, HitagS256, HitagS2048, Atmel temic 5567 IC available at 13.56MHz nominal:NXP Mifare1 S50, Mifare1 S70 ...