1.Craft: printing logo, number printing 2.Chip:MF 1K, MF 4K, TK4100, etc 3.Frequency:125khz, 13.56mhz 4.Good quality, OEM 125khz compatible EM ABS key fob (TK4100) details: Water and dust proof and anti shock IC available at 125KHz nominalEM4200, TK4100, Temic5577, Hi tag 1, Hitag2, HitagS256, HitagS2048IC available at 13.56MHz nominalNXP Mifare1 S50, NXP Mifare1 S70, Desfire MF31CD01, Mifare ...