Keychain Keychain Carmen Carmen card into the card into the card door to door cards frequency Model: LF 125KHz Chip (ID card): TK4100, EM4200, EM4305, Atmel Temic5577 ......... HF 13.56MHz chip: M1, Mifare S50 / S70, Mifare Ultralight, Mifare DESFire EV1 2K/4K/8K, Icode SLI2, FM1204, FM1208, TI 2048 ....... UHF 860 ~ 960MHz chip: UCODE EPC Gen2, Ucode HSL, Ucode Gen2, G2 XL, G2XM ...... ..... Product parameters: Material ABS Dimensions different colors red, blue, yellow, green (batch can be customized) Printing Silkscreen Packaging 50-200PCS / box, 2000/3000/5000PCS / box craft mode ultrasonic welding / glue fight Code mode laser code, Coding Features: 1, small and exquisite appearance, durable, non-fading 2, can be hung on the keychain 3 series, customers can request appearance design 4, the surface can Coding, engraved code, spray engraved serial number, spray engraved letters, etc. Applications: Widely used in city card, bus, attendance management, access control systems, business card systems, membership management, transportation payment, parking management, authentication, such as radio frequency identification fields.