NFC Key Chain,13.56khz Plastic Key Tags Size:37*30.3*8.2mm Blue/Grey,other ... need customization.Packaging: gluedTemperature. -25 ~ + 50 degreeIC available at 125KHz nominalTK4100, EM4100, EM4102, EM4450,NXP Hiatg1, Hitag2, HitagS256, HitagS2048,Atmel temic 5567IC ... Sli , Legic mim256, JWL872, TI256, TI2048,INSIDE picopass 2KS NFC Key Chain,13.56khz Plastic ...