... various chips are available proximity card for hotel card key system FeaturesLF/ HF/UHF operational frequency chips are ... or logical encryption versions, higher security.Printing can be customized.SpecificationMaterial: PVCDimension: 85.6x54x0.84mmColor: white, custom made ... , Business management system, and etc. It can be customized to produce individualized business card, medical care card, member ...