... Oval dial, Waterproof 2.inside diameter--74mm; band width-16mm 3.Color: blue, red, black, etc. 13.56MHz Mifare RFID wristband with 1k ... Byte Memory 1. Waterproof, dampproof., Quakeproof, high temperature resist 2. ... Options of RFID Wristband1) LF (125KHz): EM4100,EM4200,T5577,Hitag 1,Hitag 2,Hitag S, etc.2) HF (13.56MHz): Mifare1 S50 ...